diff --git a/libs/audio.py b/libs/audio.py
index 246f989..5c8d885 100644
--- a/libs/audio.py
+++ b/libs/audio.py
@@ -245,7 +245,7 @@ class AudioEngine:
         """Load sounds for a given screen"""
         path = self.sounds_path / screen_name
         if not path.exists():
-            logger.warning(f"Sounds for {screen_name} not found")
+            logger.warning(f"Sounds for screen {screen_name} not found")
             return
         for sound in path.iterdir():
             if sound.is_dir():
diff --git a/libs/background.py b/libs/background.py
index a72b1e4..0995955 100644
--- a/libs/background.py
+++ b/libs/background.py
@@ -10,6 +10,7 @@ from libs.bg_objects.don_bg import DonBG
 from libs.bg_objects.fever import Fever
 from libs.bg_objects.footer import Footer
 from libs.bg_objects.renda import RendaController
+from libs.global_data import Difficulty
 from libs.texture import TextureWrapper
 
 logger = logging.getLogger(__name__)
@@ -124,7 +125,7 @@ class Background:
             gauge_2p (Gauge): The gauge object for player 2.
         """
         if self.dancer is not None and gauge_1p is not None:
-            clear_threshold = gauge_1p.clear_start[min(gauge_1p.difficulty, 3)]
+            clear_threshold = gauge_1p.clear_start[min(gauge_1p.difficulty, Difficulty.ONI)]
             if gauge_1p.gauge_length < clear_threshold:
                 current_milestone = min(self.max_dancers - 1, int(gauge_1p.gauge_length / (clear_threshold / self.max_dancers)))
             else:
diff --git a/libs/file_navigator.py b/libs/file_navigator.py
index 2e81a64..38d0d3d 100644
--- a/libs/file_navigator.py
+++ b/libs/file_navigator.py
@@ -6,6 +6,7 @@ import random
 from typing import Optional, Union
 from libs.audio import audio
 from libs.animation import Animation, MoveAnimation
+from libs.global_data import Crown, Difficulty
 from libs.tja import TJAParser, test_encodings
 from libs.texture import tex
 from libs.utils import OutlinedText, get_current_ms, global_data
@@ -55,7 +56,7 @@ class SongBox:
         self.is_open = False
         self.is_back = self.texture_index == SongBox.BACK_INDEX
         if self.is_back:
-            for i in range(1, 16):
+            for i in range(1, SongBox.BACK_INDEX-1):
                 if audio.is_sound_playing(f'genre_voice_{i}'):
                     audio.stop_sound(f'genre_voice_{i}')
         self.name = None
@@ -209,20 +210,20 @@ class SongBox:
         if valid_scores:
             highest_key = max(valid_scores.keys())
             score = self.scores[highest_key]
-            if score and ((score[5] == 2 and score[2] == 0) or (score[2] == 0 and score[3] == 0)):
-                tex.draw_texture('yellow_box', 'crown_dfc', x=x, y=y, frame=min(4, highest_key))
-            elif score and ((score[5] == 2) or (score[3] == 0)):
-                tex.draw_texture('yellow_box', 'crown_fc', x=x, y=y, frame=min(4, highest_key))
-            elif score and score[5] >= 1:
-                tex.draw_texture('yellow_box', 'crown_clear', x=x, y=y, frame=min(4, highest_key))
+            if score and score[5] == Crown.DFC:
+                tex.draw_texture('yellow_box', 'crown_dfc', x=x, y=y, frame=min(Difficulty.URA, highest_key))
+            elif score and score[5] == Crown.FC:
+                tex.draw_texture('yellow_box', 'crown_fc', x=x, y=y, frame=min(Difficulty.URA, highest_key))
+            elif score and score[5] >= Crown.CLEAR:
+                tex.draw_texture('yellow_box', 'crown_clear', x=x, y=y, frame=min(Difficulty.URA, highest_key))
         if self.crown: #Folder lamp
             highest_crown = max(self.crown)
             if self.crown[highest_crown] == 'DFC':
-                tex.draw_texture('yellow_box', 'crown_dfc', x=x, y=y, frame=min(4, highest_crown))
+                tex.draw_texture('yellow_box', 'crown_dfc', x=x, y=y, frame=min(Difficulty.URA, highest_crown))
             elif self.crown[highest_crown] == 'FC':
-                tex.draw_texture('yellow_box', 'crown_fc', x=x, y=y, frame=min(4, highest_crown))
+                tex.draw_texture('yellow_box', 'crown_fc', x=x, y=y, frame=min(Difficulty.URA, highest_crown))
             else:
-                tex.draw_texture('yellow_box', 'crown_clear', x=x, y=y, frame=min(4, highest_crown))
+                tex.draw_texture('yellow_box', 'crown_clear', x=x, y=y, frame=min(Difficulty.URA, highest_crown))
 
     def _draw_open(self, x: int, y: int, fade_override: Optional[float]):
         color = ray.WHITE
@@ -371,13 +372,13 @@ class YellowBox:
         if self.tja is None:
             return
         for diff in self.tja.metadata.course_data:
-            if diff >= 4:
+            if diff >= Difficulty.URA:
                 continue
-            elif diff in song_box.scores and song_box.scores[diff] is not None and ((song_box.scores[diff][4] == 2 and song_box.scores[diff][2] == 0) or (song_box.scores[diff][2] == 0 and song_box.scores[diff][3] == 0)):
+            elif diff in song_box.scores and song_box.scores[diff] is not None and song_box.scores[diff][4] == Crown.DFC:
                 tex.draw_texture('yellow_box', 's_crown_dfc', x=(diff*60), color=color)
-            elif diff in song_box.scores and song_box.scores[diff] is not None and ((song_box.scores[diff][4] == 2) or (song_box.scores[diff][3] == 0)):
+            elif diff in song_box.scores and song_box.scores[diff] is not None and song_box.scores[diff][4] == Crown.FC:
                 tex.draw_texture('yellow_box', 's_crown_fc', x=(diff*60), color=color)
-            elif diff in song_box.scores and song_box.scores[diff] is not None and song_box.scores[diff][4] >= 1:
+            elif diff in song_box.scores and song_box.scores[diff] is not None and song_box.scores[diff][4] >= Crown.CLEAR:
                 tex.draw_texture('yellow_box', 's_crown_clear', x=(diff*60), color=color)
             tex.draw_texture('yellow_box', 's_crown_outline', x=(diff*60), fade=min(fade, 0.25))
 
@@ -398,7 +399,7 @@ class YellowBox:
                 tex.draw_texture('yellow_box', 'difficulty_bar_shadow', frame=i, x=(i*60), fade=min(fade, 0.25))
 
         for diff in self.tja.metadata.course_data:
-            if diff >= 4:
+            if diff >= Difficulty.URA:
                 continue
             for j in range(self.tja.metadata.course_data[diff].level):
                 tex.draw_texture('yellow_box', 'star', x=(diff*60), y=(j*-17), color=color)
@@ -415,7 +416,7 @@ class YellowBox:
         for diff in self.tja.metadata.course_data:
             if song_box is None:
                 continue
-            if diff >= 4:
+            if diff >= Difficulty.URA:
                 continue
             elif diff in song_box.scores and song_box.scores[diff] is not None and ((song_box.scores[diff][4] == 2 and song_box.scores[diff][2] == 0) or (song_box.scores[diff][2] == 0 and song_box.scores[diff][3] == 0)):
                 tex.draw_texture('yellow_box', 's_crown_dfc', x=(diff*115)+8, y=-120, fade=self.fade_in.attribute)
@@ -426,7 +427,7 @@ class YellowBox:
             tex.draw_texture('yellow_box', 's_crown_outline', x=(diff*115)+8, y=-120, fade=min(self.fade_in.attribute, 0.25))
 
         for i in range(4):
-            if i == 3 and is_ura:
+            if i == Difficulty.ONI and is_ura:
                 tex.draw_texture('diff_select', 'diff_tower', frame=4, x=(i*115), fade=self.fade_in.attribute)
                 tex.draw_texture('diff_select', 'ura_oni_plate', fade=self.fade_in.attribute)
             else:
@@ -435,16 +436,16 @@ class YellowBox:
                 tex.draw_texture('diff_select', 'diff_tower_shadow', frame=i, x=(i*115), fade=min(self.fade_in.attribute, 0.25))
 
         for course in self.tja.metadata.course_data:
-            if (course == 4 and not is_ura) or (course == 3 and is_ura):
+            if (course == Difficulty.URA and not is_ura) or (course == Difficulty.ONI and is_ura):
                 continue
             for j in range(self.tja.metadata.course_data[course].level):
-                tex.draw_texture('yellow_box', 'star_ura', x=min(course, 3)*115, y=(j*-20), fade=self.fade_in.attribute)
+                tex.draw_texture('yellow_box', 'star_ura', x=min(course, Difficulty.ONI)*115, y=(j*-20), fade=self.fade_in.attribute)
             if self.tja.metadata.course_data[course].is_branching and (get_current_ms() // 1000) % 2 == 0:
-                if course == 4:
+                if course == Difficulty.URA:
                     name = 'branch_indicator_ura'
                 else:
                     name = 'branch_indicator_diff'
-                tex.draw_texture('yellow_box', name, x=min(course, 3)*115, fade=self.fade_in.attribute)
+                tex.draw_texture('yellow_box', name, x=min(course, Difficulty.ONI)*115, fade=self.fade_in.attribute)
 
     def _draw_text(self, song_box):
         if not isinstance(self.right_out, MoveAnimation):
@@ -726,7 +727,7 @@ class ScoreHistory:
     def draw_long(self):
         tex.draw_texture('leaderboard','background_2')
         tex.draw_texture('leaderboard','title', index=self.long)
-        if self.curr_difficulty == 4:
+        if self.curr_difficulty == Difficulty.URA:
             tex.draw_texture('leaderboard', 'shinuchi_ura', index=self.long)
         else:
             tex.draw_texture('leaderboard', 'shinuchi', index=self.long)
@@ -743,7 +744,7 @@ class ScoreHistory:
         tex.draw_texture('leaderboard', 'judge_drumroll')
 
         for j, counter in enumerate(self.scores[self.curr_difficulty]):
-            if j == 5:
+            if j == Difficulty.TOWER:
                 continue
             counter = str(counter)
             margin = 24
@@ -760,7 +761,7 @@ class ScoreHistory:
         tex.draw_texture('leaderboard','background')
         tex.draw_texture('leaderboard','title')
 
-        if self.curr_difficulty == 4:
+        if self.curr_difficulty == Difficulty.URA:
             tex.draw_texture('leaderboard', 'normal_ura')
             tex.draw_texture('leaderboard', 'shinuchi_ura')
         else:
@@ -768,7 +769,7 @@ class ScoreHistory:
             tex.draw_texture('leaderboard', 'shinuchi')
 
         color = ray.BLACK
-        if self.curr_difficulty == 4:
+        if self.curr_difficulty == Difficulty.URA:
             color = ray.WHITE
             tex.draw_texture('leaderboard','ura')
 
@@ -944,7 +945,7 @@ class FileNavigator:
         self.favorite_folder: Optional[Directory] = None
         self.recent_folder: Optional[Directory] = None
         self.selected_index = 0
-        self.diff_sort_diff = 4
+        self.diff_sort_diff = Difficulty.URA
         self.diff_sort_level = 10
         self.diff_sort_statistics = dict()
         self.history = []
@@ -1105,8 +1106,8 @@ class FileNavigator:
 
                         scores = song_obj.box.scores.get(course)
                         if scores is not None:
-                            is_cleared = scores[4] >= 1
-                            is_full_combo = (scores[4] == 2) or (scores[3] == 0)
+                            is_cleared = scores[4] >= Crown.CLEAR
+                            is_full_combo = scores[4] == Crown.FC
                         else:
                             is_cleared = False
                             is_full_combo = False
@@ -1281,7 +1282,7 @@ class FileNavigator:
             if selected_item.collection == Directory.COLLECTIONS[3]:
                 diff_sort = self.diff_sort_level
                 diffs = ['かんたん', 'ふつう', 'むずかしい', 'おに']
-                hori_name = OutlinedText(diffs[min(3, self.diff_sort_diff)], 40, ray.WHITE, outline_thickness=5)
+                hori_name = OutlinedText(diffs[min(Difficulty.ONI, self.diff_sort_diff)], 40, ray.WHITE, outline_thickness=5)
             self.genre_bg = GenreBG(start_box, end_box, hori_name, diff_sort)
 
     def select_current_item(self):
@@ -1367,11 +1368,11 @@ class FileNavigator:
                     all_scores[diff].append(song_obj.box.scores[diff])
 
         for diff in all_scores:
-            if all(score is not None and ((score[5] == 2 and score[2] == 0) or (score[2] == 0 and score[3] == 0)) for score in all_scores[diff]):
+            if all(score is not None and score[5] == Crown.DFC for score in all_scores[diff]):
                 crowns[diff] = 'DFC'
-            elif all(score is not None and ((score[5] == 2) or (score[3] == 0)) for score in all_scores[diff]):
+            elif all(score is not None and score[5] == Crown.FC for score in all_scores[diff]):
                 crowns[diff] = 'FC'
-            elif all(score is not None and score[5] >= 1 for score in all_scores[diff]):
+            elif all(score is not None and score[5] >= Crown.CLEAR for score in all_scores[diff]):
                 crowns[diff] = 'CLEAR'
 
         self.directory_crowns[dir_key] = crowns
diff --git a/libs/global_data.py b/libs/global_data.py
index 7fd089c..25f0187 100644
--- a/libs/global_data.py
+++ b/libs/global_data.py
@@ -1,7 +1,23 @@
 from dataclasses import dataclass, field
+from enum import IntEnum
 from pathlib import Path
 from typing import Any, TypedDict
 
+class Difficulty(IntEnum):
+    EASY = 0
+    NORMAL = 1
+    HARD = 2
+    ONI = 3
+    URA = 4
+    TOWER = 5
+    DAN = 6
+
+class Crown(IntEnum):
+    NONE = 0
+    CLEAR = 1
+    FC = 2
+    DFC = 3
+
 class GeneralConfig(TypedDict):
     fps_counter: bool
     audio_offset: int
diff --git a/libs/song_hash.py b/libs/song_hash.py
index ddcd17e..e5b91d2 100644
--- a/libs/song_hash.py
+++ b/libs/song_hash.py
@@ -7,6 +7,7 @@ import sys
 import time
 from pathlib import Path
 
+from libs.global_data import Crown
 from libs.tja import NoteList, TJAParser, test_encodings
 from libs.utils import get_config, global_data
 
@@ -179,13 +180,13 @@ def build_song_hashes(output_dir=Path("cache")):
                     continue
                 if imported_clears[i] == 2:
                     bads = 0
-                    clear = 2
+                    clear = Crown.FC
                 elif imported_clears[i] == 1:
                     bads = None
-                    clear = 1
+                    clear = Crown.CLEAR
                 else:
                     bads = None
-                    clear = 0
+                    clear = Crown.NONE
                 cursor.execute("""
                     INSERT OR REPLACE INTO scores (hash, en_name, jp_name, diff, score, clear, bad)
                     VALUES (?, ?, ?, ?, ?, ?, ?)
diff --git a/libs/texture.py b/libs/texture.py
index a394ba5..971a995 100644
--- a/libs/texture.py
+++ b/libs/texture.py
@@ -166,7 +166,7 @@ class TextureWrapper:
         """Load textures for a screen."""
         screen_path = self.graphics_path / screen_name
         if not screen_path.exists():
-            logger.warning(f"Screen {screen_name} does not exist")
+            logger.warning(f"Textures for Screen {screen_name} do not exist")
             return
         if (screen_path / 'animation.json').exists():
             with open(screen_path / 'animation.json') as json_file:
diff --git a/libs/tja.py b/libs/tja.py
index 91f0dec..3639310 100644
--- a/libs/tja.py
+++ b/libs/tja.py
@@ -1,4 +1,5 @@
 import bisect
+from enum import IntEnum
 import hashlib
 import math
 import logging
@@ -26,6 +27,18 @@ def get_pixels_per_ms(pixels_per_frame: float):
     """Calculate the number of pixels per millisecond."""
     return pixels_per_frame / (1000 / 60)
 
+class NoteType(IntEnum):
+    NONE = 0
+    DON = 1
+    KAT = 2
+    DON_L = 3
+    KAT_L = 4
+    ROLL_HEAD = 5
+    ROLL_HEAD_L = 6
+    BALLOON_HEAD = 7
+    TAIL = 8
+    KUSUDAMA = 9
+
 @dataclass()
 class Note:
     """A note in a TJA file.
diff --git a/scenes/game.py b/scenes/game.py
index fd44e27..ab3d426 100644
--- a/scenes/game.py
+++ b/scenes/game.py
@@ -12,7 +12,7 @@ from libs.animation import Animation
 from libs.audio import audio
 from libs.background import Background
 from libs.chara_2d import Chara2D
-from libs.global_data import Modifiers
+from libs.global_data import Crown, Difficulty, Modifiers
 from libs.global_objects import AllNetIcon, Nameplate
 from libs.screen import Screen
 from libs.texture import tex
@@ -21,6 +21,7 @@ from libs.tja import (
     Drumroll,
     Note,
     NoteList,
+    NoteType,
     TJAParser,
     apply_modifiers,
     calculate_base_score,
@@ -168,13 +169,13 @@ class GameScreen(Screen):
             result = cursor.fetchone()
             existing_score = result[0] if result is not None else None
             existing_crown = result[1] if result is not None and len(result) > 1 and result[1] is not None else 0
-            crown = 0
+            crown = Crown.NONE
             if session_data.result_data.bad and session_data.result_data.ok == 0:
-                crown = 3
+                crown = Crown.DFC
             elif session_data.result_data.bad == 0:
-                crown = 2
+                crown = Crown.FC
             elif self.player_1.gauge.is_clear:
-                crown = 1
+                crown = Crown.CLEAR
             logger.info(f"Existing score: {existing_score}, Existing crown: {existing_crown}, New score: {session_data.result_data.score}, New crown: {crown}")
             if result is None or (existing_score is not None and session_data.result_data.score > existing_score):
                 insert_query = '''
@@ -383,9 +384,9 @@ class Player:
                 if section.play_notes:
                     self.end_time = max(self.end_time, section.play_notes[-1].hit_ms)
 
-        self.don_notes = deque([note for note in self.play_notes if note.type in {1, 3}])
-        self.kat_notes = deque([note for note in self.play_notes if note.type in {2, 4}])
-        self.other_notes = deque([note for note in self.play_notes if note.type not in {1, 2, 3, 4}])
+        self.don_notes = deque([note for note in self.play_notes if note.type in {NoteType.DON, NoteType.DON_L}])
+        self.kat_notes = deque([note for note in self.play_notes if note.type in {NoteType.KAT, NoteType.KAT_L}])
+        self.other_notes = deque([note for note in self.play_notes if note.type not in {NoteType.DON, NoteType.DON_L, NoteType.KAT, NoteType.KAT_L}])
         self.total_notes = len([note for note in self.play_notes if 0 < note.type < 5])
         total_notes = notes
         if self.branch_m:
@@ -416,9 +417,9 @@ class Player:
         self.play_notes = deque(sorted(self.play_notes))
         self.draw_note_list = deque(sorted(self.draw_note_list, key=lambda x: x.load_ms))
         self.draw_bar_list = deque(sorted(self.draw_bar_list, key=lambda x: x.load_ms))
-        total_don = [note for note in self.play_notes if note.type in {1, 3}]
-        total_kat = [note for note in self.play_notes if note.type in {2, 4}]
-        total_other = [note for note in self.play_notes if note.type not in {1, 2, 3, 4}]
+        total_don = [note for note in self.play_notes if note.type in {NoteType.DON, NoteType.DON_L}]
+        total_kat = [note for note in self.play_notes if note.type in {NoteType.KAT, NoteType.KAT_L}]
+        total_other = [note for note in self.play_notes if note.type not in {NoteType.DON, NoteType.DON_L, NoteType.KAT, NoteType.KAT_L}]
 
         self.don_notes = deque([note for note in total_don if note.hit_ms > current_ms])
         self.kat_notes = deque([note for note in total_kat if note.hit_ms > current_ms])
@@ -493,7 +494,7 @@ class Player:
                     end_roll = -1
                     for notes in note_lists:
                         for i in range(len(notes)-1, -1, -1):
-                            if notes[i].type == 8 and notes[i].hit_ms <= end_time:
+                            if notes[i].type == NoteType.TAIL and notes[i].hit_ms <= end_time:
                                 end_roll = notes[i].hit_ms
                                 break
                         if end_roll != -1:
@@ -555,11 +556,11 @@ class Player:
 
         note = self.other_notes[0]
         if (note.hit_ms <= current_ms):
-            if note.type == 5 or note.type == 6:
+            if note.type == NoteType.ROLL_HEAD or note.type == NoteType.ROLL_HEAD_L:
                 self.is_drumroll = True
-            elif note.type == 7 or note.type == 9:
+            elif note.type == NoteType.BALLOON_HEAD or note.type == NoteType.KUSUDAMA:
                 self.is_balloon = True
-            elif note.type == 8:
+            elif note.type == NoteType.TAIL:
                 self.other_notes.popleft()
                 self.is_drumroll = False
                 self.is_balloon = False
@@ -582,7 +583,7 @@ class Player:
             if 5 <= current_note.type <= 7:
                 bisect.insort_left(self.current_notes_draw, current_note, key=lambda x: x.index)
                 try:
-                    tail_note = next((note for note in self.draw_note_list if note.type == 8))
+                    tail_note = next((note for note in self.draw_note_list if note.type == NoteType.TAIL))
                     bisect.insort_left(self.current_notes_draw, tail_note, key=lambda x: x.index)
                     self.draw_note_list.remove(tail_note)
                 except Exception as e:
@@ -597,7 +598,7 @@ class Player:
             self.current_notes_draw[0].color += 1
 
         note = self.current_notes_draw[0]
-        if note.type in {5, 6, 7, 9} and len(self.current_notes_draw) > 1:
+        if note.type in {NoteType.ROLL_HEAD, NoteType.ROLL_HEAD_L, NoteType.BALLOON_HEAD, NoteType.KUSUDAMA} and len(self.current_notes_draw) > 1:
             note = self.current_notes_draw[1]
         position = self.get_position_x(SCREEN_WIDTH, current_ms, note.hit_ms, note.pixels_per_frame_x)
         if position < GameScreen.JUDGE_X + 650:
@@ -610,15 +611,15 @@ class Player:
 
     def note_correct(self, note: Note, current_time: float):
         """Removes a note from the appropriate separated list"""
-        if note.type in {1, 3} and self.don_notes and self.don_notes[0] == note:
+        if note.type in {NoteType.DON, NoteType.DON_L} and self.don_notes and self.don_notes[0] == note:
             self.don_notes.popleft()
-        elif note.type in {2, 4} and self.kat_notes and self.kat_notes[0] == note:
+        elif note.type in {NoteType.KAT, NoteType.KAT_L} and self.kat_notes and self.kat_notes[0] == note:
             self.kat_notes.popleft()
-        elif note.type not in {1, 2, 3, 4} and self.other_notes and self.other_notes[0] == note:
+        elif note.type not in {NoteType.DON, NoteType.DON_L, NoteType.KAT, NoteType.KAT_L} and self.other_notes and self.other_notes[0] == note:
             self.other_notes.popleft()
 
         index = note.index
-        if note.type == 7:
+        if note.type == NoteType.BALLOON_HEAD:
             if self.other_notes:
                 self.other_notes.popleft()
 
@@ -631,8 +632,8 @@ class Player:
             if self.combo > self.max_combo:
                 self.max_combo = self.combo
 
-        if note.type != 9:
-            self.draw_arc_list.append(NoteArc(note.type, current_time, self.is_2p + 1, note.type == 3 or note.type == 4 or note.type == 7, note.type == 7))
+        if note.type != NoteType.KUSUDAMA:
+            self.draw_arc_list.append(NoteArc(note.type, current_time, self.is_2p + 1, note.type == NoteType.DON_L or note.type == NoteType.KAT_L or note.type == NoteType.BALLOON_HEAD, note.type == NoteType.BALLOON_HEAD))
 
         if note in self.current_notes_draw:
             index = self.current_notes_draw.index(note)
@@ -693,7 +694,7 @@ class Player:
         if len(self.don_notes) == 0 and len(self.kat_notes) == 0 and len(self.other_notes) == 0:
             return
 
-        if self.difficulty < 2:
+        if self.difficulty < Difficulty.NORMAL:
             good_window_ms = Player.TIMING_GOOD_EASY
             ok_window_ms = Player.TIMING_OK_EASY
             bad_window_ms = Player.TIMING_BAD_EASY
@@ -727,7 +728,7 @@ class Player:
             if ms_from_start > (curr_note.hit_ms + bad_window_ms):
                 return
 
-            big = curr_note.type == 3 or curr_note.type == 4
+            big = curr_note.type == NoteType.DON_L or curr_note.type == NoteType.KAT_L
             if (curr_note.hit_ms - good_window_ms) <= ms_from_start <= (curr_note.hit_ms + good_window_ms):
                 self.draw_judge_list.append(Judgement('GOOD', big, self.is_2p))
                 self.lane_hit_effect = LaneHitEffect('GOOD', self.is_2p)
@@ -846,7 +847,7 @@ class Player:
                 self.autoplay_hit_side = 'R' if self.autoplay_hit_side == 'L' else 'L'
                 self.spawn_hit_effects(hit_type, self.autoplay_hit_side)
                 audio.play_sound(f'hitsound_don_{self.player_number}p', 'hitsound')
-                note_type = 3 if note.type == 6 else 1
+                note_type = NoteType.DON_L if note.type == NoteType.ROLL_HEAD_L else NoteType.DON
                 self.check_note(ms_from_start, note_type, current_time, background)
         else:
             # Handle DON notes
@@ -971,8 +972,8 @@ class Player:
     def draw_drumroll(self, current_ms: float, head: Drumroll, current_eighth: int):
         """Draws a drumroll in the player's lane"""
         start_position = self.get_position_x(SCREEN_WIDTH, current_ms, head.load_ms, head.pixels_per_frame_x)
-        tail = next((note for note in self.current_notes_draw[1:] if note.type == 8 and note.index > head.index), self.current_notes_draw[1])
-        is_big = int(head.type == 6)
+        tail = next((note for note in self.current_notes_draw[1:] if note.type == NoteType.TAIL and note.index > head.index), self.current_notes_draw[1])
+        is_big = int(head.type == NoteType.ROLL_HEAD_L)
         end_position = self.get_position_x(SCREEN_WIDTH, current_ms, tail.load_ms, tail.pixels_per_frame_x)
         length = end_position - start_position
         color = ray.Color(255, head.color, head.color, 255)
@@ -993,7 +994,7 @@ class Player:
         """Draws a balloon in the player's lane"""
         offset = 12
         start_position = self.get_position_x(SCREEN_WIDTH, current_ms, head.load_ms, head.pixels_per_frame_x)
-        tail = next((note for note in self.current_notes_draw[1:] if note.type == 8 and note.index > head.index), self.current_notes_draw[1])
+        tail = next((note for note in self.current_notes_draw[1:] if note.type == NoteType.TAIL and note.index > head.index), self.current_notes_draw[1])
         end_position = self.get_position_x(SCREEN_WIDTH, current_ms, tail.load_ms, tail.pixels_per_frame_x)
         pause_position = 349
         if current_ms >= tail.hit_ms:
@@ -1041,7 +1042,7 @@ class Player:
         for note in reversed(self.current_notes_draw):
             if self.balloon_anim is not None and note == self.current_notes_draw[0]:
                 continue
-            if note.type == 8:
+            if note.type == NoteType.TAIL:
                 continue
 
             if isinstance(note, Drumroll):
@@ -2193,16 +2194,16 @@ class Gauge:
         self.gauge_length = 0
         self.previous_length = 0
         self.total_notes = total_notes
-        self.difficulty = min(3, difficulty)
+        self.difficulty = min(Difficulty.ONI, difficulty)
         self.clear_start = [52, 60, 69, 69]
         self.gauge_max = 87
         self.level = min(10, level)
         self.tamashii_fire_change = tex.get_animation(25)
-        if self.difficulty == 2:
+        if self.difficulty == Difficulty.HARD:
             self.string_diff = "_hard"
-        elif self.difficulty == 1:
+        elif self.difficulty == Difficulty.NORMAL:
             self.string_diff = "_normal"
-        elif self.difficulty == 0:
+        elif self.difficulty == Difficulty.EASY:
             self.string_diff = "_easy"
         self.is_clear = False
         self.is_rainbow = False
@@ -2274,7 +2275,7 @@ class Gauge:
             self.gauge_length = 0
 
     def update(self, current_ms: float):
-        self.is_clear = self.gauge_length > self.clear_start[min(self.difficulty, 2)]-1
+        self.is_clear = self.gauge_length > self.clear_start[min(self.difficulty, Difficulty.HARD)]-1
         self.is_rainbow = self.gauge_length == self.gauge_max
         if self.gauge_length == self.gauge_max and self.rainbow_fade_in is None:
             self.rainbow_fade_in = Animation.create_fade(450, initial_opacity=0.0, final_opacity=1.0)
diff --git a/scenes/practice/game.py b/scenes/practice/game.py
index e1f0c0a..80f1051 100644
--- a/scenes/practice/game.py
+++ b/scenes/practice/game.py
@@ -9,7 +9,7 @@ from libs.animation import Animation
 from libs.audio import audio
 from libs.background import Background
 from libs.global_data import Modifiers, global_data
-from libs.tja import Balloon, Drumroll, Note, TJAParser, apply_modifiers
+from libs.tja import Balloon, Drumroll, Note, NoteType, TJAParser, apply_modifiers
 from libs.utils import get_current_ms, get_key_code
 from libs.texture import tex
 from scenes.game import DrumHitEffect, GameScreen, JudgeCounter, LaneHitEffect, Player, SCREEN_WIDTH
@@ -163,7 +163,7 @@ class PracticeGameScreen(GameScreen):
         """Draws a drumroll in the player's lane"""
         start_position = self.get_position_x(SCREEN_WIDTH, current_ms, head.load_ms, head.pixels_per_frame_x)
         tail = next((note for note in self.scrobble_note_list if note.index == index+1), self.scrobble_note_list[index+1])
-        is_big = int(head.type == 6)
+        is_big = int(head.type == NoteType.ROLL_HEAD_L)
         end_position = self.get_position_x(SCREEN_WIDTH, current_ms, tail.load_ms, tail.pixels_per_frame_x)
         length = end_position - start_position
         color = ray.Color(255, head.color, head.color, 255)
@@ -216,7 +216,7 @@ class PracticeGameScreen(GameScreen):
             tex.draw_texture('notes', bar_type, frame=frame, x=x, y=y)
 
         for note in reversed(self.scrobble_note_list):
-            if note.type == 8:
+            if note.type == NoteType.TAIL:
                 continue
 
             if isinstance(note, Drumroll):
diff --git a/scenes/result.py b/scenes/result.py
index 1b30950..d11b86d 100644
--- a/scenes/result.py
+++ b/scenes/result.py
@@ -1,7 +1,7 @@
 import logging
 import pyray as ray
 
-from libs.global_data import reset_session
+from libs.global_data import Difficulty, reset_session
 from libs.audio import audio
 from libs.chara_2d import Chara2D
 from libs.global_objects import AllNetIcon, CoinOverlay, Nameplate
@@ -469,15 +469,15 @@ class Gauge:
     def __init__(self, player_num: str, gauge_length: float, is_2p: bool):
         self.is_2p = is_2p
         self.player_num = player_num
-        self.difficulty = min(2, global_data.session_data[int(player_num)-1].selected_difficulty)
+        self.difficulty = min(Difficulty.HARD, global_data.session_data[int(player_num)-1].selected_difficulty)
         self.gauge_length = gauge_length
         self.clear_start = [69, 69, 69]
         self.gauge_max = 87
-        if self.difficulty >= 2:
+        if self.difficulty >= Difficulty.HARD:
             self.string_diff = "_hard"
-        elif self.difficulty == 1:
+        elif self.difficulty == Difficulty.NORMAL:
             self.string_diff = "_normal"
-        elif self.difficulty == 0:
+        elif self.difficulty == Difficulty.EASY:
             self.string_diff = "_easy"
         self.rainbow_animation = tex.get_animation(16)
         self.gauge_fade_in = tex.get_animation(17)
diff --git a/scenes/song_select.py b/scenes/song_select.py
index d3fdf9a..1ea27e3 100644
--- a/scenes/song_select.py
+++ b/scenes/song_select.py
@@ -9,7 +9,7 @@ from libs.file_navigator import DanCourse, navigator
 from libs.audio import audio
 from libs.chara_2d import Chara2D
 from libs.file_navigator import Directory, SongBox, SongFile
-from libs.global_data import Modifiers
+from libs.global_data import Difficulty, Modifiers
 from libs.global_objects import AllNetIcon, CoinOverlay, Nameplate, Indicator, Timer
 from libs.screen import Screen
 from libs.texture import tex
@@ -559,7 +559,7 @@ class SongSelectPlayer:
             elif is_r_kat_pressed(self.player_num):
                 ret_val = self._navigate_difficulty_right(diffs)
 
-            if 0 <= self.selected_difficulty <= 4 and self.selected_difficulty != prev_diff:
+            if Difficulty.EASY <= self.selected_difficulty <= Difficulty.URA and self.selected_difficulty != prev_diff:
                 self.selected_diff_bounce.start()
                 self.selected_diff_fadein.start()
 
@@ -567,7 +567,7 @@ class SongSelectPlayer:
             return ret_val
 
         if (ray.is_key_pressed(ray.KeyboardKey.KEY_TAB) and
-            self.selected_difficulty in [3, 4]):
+            self.selected_difficulty in [Difficulty.ONI, Difficulty.URA]):
             return self._toggle_ura_mode()
 
         return None
@@ -575,7 +575,7 @@ class SongSelectPlayer:
     def _navigate_difficulty_left(self, diffs):
         """Navigate difficulty selection leftward"""
         self.diff_select_move_right = False
-        if self.is_ura and self.selected_difficulty == 4:
+        if self.is_ura and self.selected_difficulty == Difficulty.URA:
             self.diff_selector_move_1.start()
             self.prev_diff = self.selected_difficulty
             if len(diffs) == 1:
@@ -604,12 +604,12 @@ class SongSelectPlayer:
     def _navigate_difficulty_right(self, diffs):
         """Navigate difficulty selection rightward"""
         self.diff_select_move_right = True
-        if self.is_ura and self.selected_difficulty == 2:
+        if self.is_ura and self.selected_difficulty == Difficulty.HARD:
             self.prev_diff = self.selected_difficulty
-            self.selected_difficulty = 4
+            self.selected_difficulty = Difficulty.URA
             self.diff_selector_move_1.start()
 
-        if (self.selected_difficulty in [3, 4] and 4 in diffs and 3 in diffs):
+        if (self.selected_difficulty in [Difficulty.ONI, Difficulty.URA] and Difficulty.URA in diffs and Difficulty.ONI in diffs):
             self.ura_toggle = (self.ura_toggle + 1) % 10
             if self.ura_toggle == 0:
                 return self._toggle_ura_mode()
@@ -646,7 +646,7 @@ class SongSelectPlayer:
                     name = f'{self.player_num}p_outline_back_half' if is_half else f'{self.player_num}p_outline_back'
                     tex.draw_texture('diff_select', name, x=((self.prev_diff+3) * 70) + (self.diff_selector_move_2.attribute * direction))
                 else:
-                    difficulty = min(3, self.selected_difficulty)
+                    difficulty = min(Difficulty.ONI, self.selected_difficulty)
                     name = f'{self.player_num}p_balloon_half' if is_half else f'{self.player_num}p_balloon'
                     tex.draw_texture('diff_select', name, x=(difficulty * 115), fade=fade)
                     name = f'{self.player_num}p_outline_half' if is_half else f'{self.player_num}p_outline'
@@ -667,34 +667,34 @@ class SongSelectPlayer:
             if self.prev_diff == -1:
                 return
             if not self.diff_selector_move_1.is_finished:
-                difficulty = min(3, self.prev_diff)
+                difficulty = min(Difficulty.ONI, self.prev_diff)
                 name = f'{self.player_num}p_balloon_half' if is_half else f'{self.player_num}p_balloon'
                 tex.draw_texture('diff_select', name, x=(difficulty * 115) + (self.diff_selector_move_1.attribute * direction), fade=fade)
                 name = f'{self.player_num}p_outline_half' if is_half else f'{self.player_num}p_outline'
                 tex.draw_texture('diff_select', name, x=(difficulty * 115) + (self.diff_selector_move_1.attribute * direction))
             else:
-                difficulty = min(3, self.selected_difficulty)
+                difficulty = min(Difficulty.ONI, self.selected_difficulty)
                 name = f'{self.player_num}p_balloon_half' if is_half else f'{self.player_num}p_balloon'
                 tex.draw_texture('diff_select', name, x=(difficulty * 115), fade=fade)
                 name = f'{self.player_num}p_outline_half' if is_half else f'{self.player_num}p_outline'
                 tex.draw_texture('diff_select', name, x=(difficulty * 115))
 
     def draw_background_diffs(self, state: int):
-        if (self.selected_song and state == State.SONG_SELECTED and self.selected_difficulty >= 0):
+        if (self.selected_song and state == State.SONG_SELECTED and self.selected_difficulty >= Difficulty.EASY):
             if self.player_num == '2':
                 tex.draw_texture('global', 'background_diff', frame=self.selected_difficulty, fade=min(0.5, self.selected_diff_fadein.attribute), x=1025, y=-self.selected_diff_bounce.attribute, y2=self.selected_diff_bounce.attribute)
                 if self.selected_diff_highlight_fade.is_reversing or self.selected_diff_highlight_fade.is_finished:
                     tex.draw_texture('global', 'background_diff', frame=self.selected_difficulty, x=1025, y=-self.selected_diff_bounce.attribute, y2=self.selected_diff_bounce.attribute)
-                tex.draw_texture('global', 'background_diff_highlight', frame=min(3, self.selected_difficulty), fade=self.selected_diff_highlight_fade.attribute, x=1025)
+                tex.draw_texture('global', 'background_diff_highlight', frame=min(Difficulty.ONI, self.selected_difficulty), fade=self.selected_diff_highlight_fade.attribute, x=1025)
                 tex.draw_texture('global', 'bg_diff_text_bg', x=1025, fade=min(0.5, self.selected_diff_text_fadein.attribute), scale=self.selected_diff_text_resize.attribute, center=True)
-                tex.draw_texture('global', 'bg_diff_text', frame=min(3, self.selected_difficulty), x=1025, fade=self.selected_diff_text_fadein.attribute, scale=self.selected_diff_text_resize.attribute, center=True)
+                tex.draw_texture('global', 'bg_diff_text', frame=min(Difficulty.ONI, self.selected_difficulty), x=1025, fade=self.selected_diff_text_fadein.attribute, scale=self.selected_diff_text_resize.attribute, center=True)
             else:
                 tex.draw_texture('global', 'background_diff', frame=self.selected_difficulty, fade=min(0.5, self.selected_diff_fadein.attribute), y=-self.selected_diff_bounce.attribute, y2=self.selected_diff_bounce.attribute)
                 if self.selected_diff_highlight_fade.is_reversing or self.selected_diff_highlight_fade.is_finished:
                     tex.draw_texture('global', 'background_diff', frame=self.selected_difficulty, y=-self.selected_diff_bounce.attribute, y2=self.selected_diff_bounce.attribute)
-                tex.draw_texture('global', 'background_diff_highlight', frame=min(3, self.selected_difficulty), fade=self.selected_diff_highlight_fade.attribute)
+                tex.draw_texture('global', 'background_diff_highlight', frame=min(Difficulty.ONI, self.selected_difficulty), fade=self.selected_diff_highlight_fade.attribute)
                 tex.draw_texture('global', 'bg_diff_text_bg', fade=min(0.5, self.selected_diff_text_fadein.attribute), scale=self.selected_diff_text_resize.attribute, center=True)
-                tex.draw_texture('global', 'bg_diff_text', frame=min(3, self.selected_difficulty), fade=self.selected_diff_text_fadein.attribute, scale=self.selected_diff_text_resize.attribute, center=True)
+                tex.draw_texture('global', 'bg_diff_text', frame=min(Difficulty.ONI, self.selected_difficulty), fade=self.selected_diff_text_fadein.attribute, scale=self.selected_diff_text_resize.attribute, center=True)
 
     def draw(self, state: int, is_half: bool = False):
         if (self.selected_song and state == State.SONG_SELECTED):
@@ -792,13 +792,13 @@ class DiffSortSelect:
 
     def get_random_sort(self):
         diff = random.randint(0, 4)
-        if diff == 0:
+        if diff == Difficulty.EASY:
             level = random.randint(1, 5)
-        elif diff == 1:
+        elif diff == Difficulty.NORMAL:
             level = random.randint(1, 7)
-        elif diff == 2:
+        elif diff == Difficulty.HARD:
             level = random.randint(1, 8)
-        elif diff == 3:
+        elif diff == Difficulty.ONI:
             level = random.randint(1, 10)
         else:
             level = random.choice([1, 5, 6, 7, 8, 9, 10])
@@ -936,7 +936,7 @@ class DiffSortSelect:
             if i < 4:
                 tex.draw_texture('diff_sort', 'box_diff', x=(100*i), frame=i)
 
-        if 0 <= self.selected_box <= 3 or self.selected_box == 5:
+        if Difficulty.EASY <= self.selected_box <= Difficulty.ONI or self.selected_box == 5:
             self.draw_statistics()
 
     def draw_level_select(self):
diff --git a/scenes/two_player/game.py b/scenes/two_player/game.py
index 721a66d..4e843b3 100644
--- a/scenes/two_player/game.py
+++ b/scenes/two_player/game.py
@@ -37,8 +37,8 @@ class TwoPlayerGameScreen(GameScreen):
             audio.load_sound(sounds_dir / "hit_sounds" / str(global_data.hit_sound[0]) / "don.ogg", 'hitsound_don_1p')
             audio.load_sound(sounds_dir / "hit_sounds" / str(global_data.hit_sound[0]) / "ka.ogg", 'hitsound_kat_1p')
             logger.info("Loaded ogg hit sounds for 1P")
-        audio.set_sound_pan('hitsound_don_1p', 1.0)
-        audio.set_sound_pan('hitsound_kat_1p', 1.0)
+        audio.set_sound_pan('hitsound_don_1p', 0.0)
+        audio.set_sound_pan('hitsound_kat_1p', 0.0)
 
         # Load hitsounds for 2P
         if global_data.hit_sound[1] == -1:
@@ -53,8 +53,8 @@ class TwoPlayerGameScreen(GameScreen):
             audio.load_sound(sounds_dir / "hit_sounds" / str(global_data.hit_sound[1]) / "don.ogg", 'hitsound_don_2p')
             audio.load_sound(sounds_dir / "hit_sounds" / str(global_data.hit_sound[1]) / "ka.ogg", 'hitsound_kat_2p')
             logger.info("Loaded ogg hit sounds for 2P")
-        audio.set_sound_pan('hitsound_don_2p', 0.0)
-        audio.set_sound_pan('hitsound_kat_2p', 0.0)
+        audio.set_sound_pan('hitsound_don_2p', 1.0)
+        audio.set_sound_pan('hitsound_kat_2p', 1.0)
 
     def global_keys(self):
         if ray.is_key_pressed(ray.KeyboardKey.KEY_F1):