Common Emulator Development Bugs

This list is intended to help emulator devlopers share knowledge of bugs they encountered during development. Please add any entries that you think would be helpful :)

Game Boy Advance

Title	Bug Description	Context/Solution
007 - Everything or Nothing (USA, Europe)	No music or sound during gameplay	https://github.com/nba-emu/NanoBoyAdvance/issues/96
007 - NightFire (USA, Europe) (En,Fr,De)	Buzzing sound	https://github.com/nba-emu/NanoBoyAdvance/issues/97
Acrobat Kid (Japan)	Does not boot (white screen)	https://github.com/nba-emu/NanoBoyAdvance/issues/92
Acrobat Kid (Japan)	Black line flashing across menu	https://github.com/mgba-emu/mgba/issues/743
Acrobat Kid	Menu blending problems (text is faded)	https://github.com/jsmolka/eggvance/issues/9
Advance Guardian Heroes (Europe)	Shadows flicker	https://github.com/nba-emu/NanoBoyAdvance/issues/95
Alien Hominids	Crashes after logo screen	https://github.com/DaveTCode/GBADotnet/issues/37
Baldur's Gate: Dark Alliance	Saving does not work	https://github.com/nba-emu/NanoBoyAdvance/issues/108
Banjo-Kazooie: Grunty's Revenge	Crashes after invalid opcode	https://github.com/ITotalJustice/notorious_beeg/issues/44
Beyblade V-Force - Ultimate Blader Jam (USA)	Audio clicks and pops	https://github.com/nba-emu/NanoBoyAdvance/issues/101
BIOS (Official)	Sounds distorted / metallic	https://github.com/jsmolka/eggvance/issues/16
Broken Sword: The Shadow of the Templars	Horizontal line through screen	https://github.com/DaveTCode/GBADotnet/issues/69
Castlevania: Aria of Sorrow	Garbage values when entering the menu	https://github.com/jsmolka/eggvance/issues/11
Celeste	Audio cracking on right side	https://github.com/jsmolka/eggvance/issues/18
Gauntlet	Wrong EEPROM size detected	https://github.com/ITotalJustice/notorious_beeg/issues/64
Donkey Kong Country	Background layers are incorrect	https://github.com/DaveTCode/GBADotnet/issues/46
Dragonball Z - The Legacy of Goku II (Eurasia release)	Hanging during intro	https://github.com/nba-emu/NanoBoyAdvance/issues/83
Golden Sun	Characters render below carpet (OAM priority hijacking)	https://github.com/nba-emu/NanoBoyAdvance/issues/99
Golden Sun	Characters render below carpet (OAM priority hijacking)	https://github.com/jsmolka/eggvance/issues/3
Golden Sun	Resets if any key is pressed	https://github.com/nba-emu/NanoBoyAdvance/issues/133
Golden Sun	Entering battles and overworld break game	https://github.com/mattrberry/crab/commit/7444832
Golden Sun	Overworld shakes and flashes wildly	https://github.com/mattrberry/crab/commit/71131ac
Golden Sun	Intro bleep sounds bad	https://github.com/jsmolka/eggvance/issues/14
Gradius Galaxies	Black screen on boot	https://github.com/DaveTCode/GBADotnet/issues/66
Gradius Galaxies	Locks up after start message	https://github.com/DaveTCode/GBADotnet/issues/82
Gunstar Super Heroes	Layering issue between enemy and icons	https://github.com/nba-emu/NanoBoyAdvance/issues/98
Gunstar Super Heroes	Sprite priority issues	https://github.com/jsmolka/eggvance/issues/2
Final Fantasy VI Advance	Continuous typing sound during intro	https://github.com/jsmolka/eggvance/issues/15
Fire Emblem	Logo blending is wrong	https://github.com/DaveTCode/GBADotnet/issues/77
Fire Emblem: The Sacred Stones	Blue line at top of screen in cutscenes	https://github.com/nba-emu/NanoBoyAdvance/issues/175
Hamtaro Rainbow Rescue	Freezes on Spanish language selection	https://github.com/nba-emu/NanoBoyAdvance/issues/91
Iridion 3D	Intro line glitches	https://github.com/nba-emu/NanoBoyAdvance/issues/176
Kirby: Nightmare in Dream Land	Audio clicks	https://github.com/mattrberry/crab/commit/6c57508
Lara Croft Tomb Raider - Legends (USA)	Stuck on black screen	https://github.com/nba-emu/NanoBoyAdvance/issues/183
Mario & Luigi: Superstar Saga	Random hangs in intro and elsewhere	https://github.com/nba-emu/NanoBoyAdvance/issues/64
Mario & Luigi: Superstar Saga	Text not appearing in the intro	https://github.com/nba-emu/NanoBoyAdvance/issues/64
Mario & Luigi: Superstar Saga	Random white noise	https://github.com/jsmolka/eggvance/issues/19
Mario & Luigi: Superstar Saga	Missing sprites on title screen	https://github.com/mattrberry/crab/issues/8
Mario & Luigi: Superstar Saga	Messed up graphics in start screen	https://github.com/mattrberry/crab/issues/9
Mario & Luigi: Superstar Saga	Completely borked graphics in game	https://github.com/mattrberry/crab/issues/10
Mario & Luigi: Superstar Saga	Missing graphics in pause screen	https://github.com/mattrberry/crab/issues/11
Mario Kart: Super Circuit	Bottom half of screen doesn't render	https://github.com/ITotalJustice/notorious_beeg/issues/45
Mario Kart: Super Circuit	Track doesn't render	https://github.com/DaveTCode/GBADotnet/issues/65
Mario Kart: Super Circuit	Sprites don't render properly on character selection	https://github.com/DaveTCode/GBADotnet/issues/64
Mario Kart: Super Circuit	Track doesn't render properly	https://github.com/DaveTCode/GBADotnet/issues/78
Mario Kart: Super Circuit	Track doesn't render properly	https://github.com/mattrberry/crab/commit/a2ccafe
Mario vs. Donkey Kong (USA, Australia)	Sprites glitch near doors or other objects	https://github.com/nba-emu/NanoBoyAdvance/issues/106
Mega Man Zero (U)	Title cut off on title screen	https://github.com/nba-emu/NanoBoyAdvance/issues/223
Mega Man Zero	No sound	https://github.com/jsmolka/eggvance/issues/13
Metal Max 2 Kai (Japan)	Flashing text	https://github.com/nba-emu/NanoBoyAdvance/issues/89
Mother 3	Softlock when sleeping	https://github.com/jsmolka/eggvance/issues/20
Mother 3	White bars in intro don't animate into frame	https://github.com/jsmolka/eggvance/issues/22
OpenLara	Flickers on the bottom half of the screen	https://github.com/DaveTCode/GBADotnet/issues/29
OpenLara	Flickers on the bottom half of the screen	https://github.com/mattrberry/crab/issues/4
Phantasy Star	Text and lines flash during intro	https://github.com/nba-emu/NanoBoyAdvance/issues/109
Phoenix Wright: Ace Attorney	Text missing on second line of NPC dialog	https://github.com/ITotalJustice/notorious_beeg/issues/27
Pinball Tycoon (USA)	Scoreboard doesn't render	https://github.com/nba-emu/NanoBoyAdvance/issues/90
Pinball Tycoon (USA)	Scoreboard renders incorrectly	https://github.com/nba-emu/NanoBoyAdvance/issues/177
Pokémon Emerald	Sprites in title screen are partially rendered	https://github.com/nba-emu/NanoBoyAdvance/issues/146
Pokémon Emerald	Fog and underwater don't blend	https://github.com/mattrberry/crab/commit/805e860
Pokémon Emerald	Broken fog effect	https://github.com/ITotalJustice/notorious_beeg/issues/97
Pokémon Emerald	Improper cloud "wave" effect	https://github.com/paoda/zba/issues/1
Pokémon Emerald	Stripes over logo on title screen	https://github.com/mattrberry/crab/commit/26b521a
Pokémon FireRed	Oak's feet are visible in gender selection screen	https://github.com/DaveTCode/GBADotnet/issues/20
Pokémon FireRed	Logo is brightened incorrectly	https://github.com/DaveTCode/GBADotnet/issues/24
Pokémon Mystery Dungeon	Text box background doesn't fill box	https://github.com/ITotalJustice/notorious_beeg/issues/51
Pokémon Pinball: Ruby & Sapphire	Tiles are displayed incorrectly during play	https://github.com/DaveTCode/GBADotnet/issues/23
Pokémon Pinball: Ruby & Sapphire	Alpha blending is wrong on field select screen	https://github.com/DaveTCode/GBADotnet/issues/49
Pokémon Ruby	Black lines at top during new game sequence	https://github.com/jsmolka/eggvance/issues/7
Pokémon Sapphire	Black lines at top during new game sequence	https://github.com/jsmolka/eggvance/issues/7
Pokémon Sapphire	Hangs at end of intro	https://github.com/jsmolka/eggvance/issues/4
Racing Gears Advance	Crashes due to undefined instruction during championship load	https://github.com/DaveTCode/GBADotnet/issues/22
Rhythm Tengoku	Crashes during boot	https://github.com/DaveTCode/GBADotnet/issues/35
Sennen Kazoku	Freezes before going to the intro	https://github.com/jsmolka/eggvance/issues/12
Sennen Kazoku	The clock equipment is broken	https://github.com/nba-emu/NanoBoyAdvance/issues/136
Sonic Advance	Breaks when skipping bios	https://github.com/ITotalJustice/notorious_beeg/issues/67
Sonic Advance	Doesn't boot	https://github.com/DaveTCode/GBADotnet/issues/39
Sonic Advance 2	Doesn't boot	https://github.com/DaveTCode/GBADotnet/issues/39
SpongeBob SquarePants (Volume 1)	"not compatible with Game Boy Player" screen repeats ad infinitum	https://github.com/nba-emu/NanoBoyAdvance/issues/152
Spyro - Season of Ice (U)(GBA)	Glitchy line in text box	https://github.com/nba-emu/NanoBoyAdvance/issues/94
Spyro	Shows wrong priorities in game	https://github.com/DaveTCode/GBADotnet/issues/41
Star Wars Episode II	Lines across scrolling text	https://github.com/nba-emu/NanoBoyAdvance/issues/93
Super Monkey Ball Jr. (USA)	Saving does not work	https://github.com/nba-emu/NanoBoyAdvance/issues/110
Sword of Mana	Audio Pops During Intro	https://github.com/ITotalJustice/notorious_beeg/issues/69
Tactics Ogre	Odd tile effect during startup	https://github.com/DaveTCode/GBADotnet/issues/27
Tactics Ogre	Blending not working with windows	https://github.com/DaveTCode/GBADotnet/issues/50
Tactics Ogre	Hangs on black screen after "new game"	https://github.com/mattrberry/crab/issues/7
Tales of Phantasia	Text box scrolls with the background	https://github.com/ITotalJustice/notorious_beeg/issues/48
The Legend of Zelda: A Link to the Past	Flickering background in choose game screen	https://github.com/jsmolka/eggvance/issues/8
The Legend of Zelda: The Minish Cap	Mising "Roll" object text	https://github.com/ITotalJustice/notorious_beeg/issues/41
The Legend of Zelda: The Minish Cap	Freezes at title screen and in game	https://github.com/ITotalJustice/notorious_beeg/issues/12
The Legend of Zelda: The Minish Cap	Black screen after intro	https://github.com/DaveTCode/GBADotnet/issues/71
Tonc: bld_demo	Blending not working for semi-transparent objects	https://github.com/jsmolka/eggvance/issues/21
Tony Hawk's Pro Skater 2	Black screen on boot	https://github.com/DaveTCode/GBADotnet/issues/38
Tony Hawk's Pro Skater 2	Freezes on startup	https://github.com/ITotalJustice/notorious_beeg/issues/18
Tony Hawk's Pro Skater 2	Text missing from intro	https://github.com/ITotalJustice/notorious_beeg/issues/26
Tony Hawk's Pro Skater 3	Pink screen on boot	https://github.com/DaveTCode/GBADotnet/issues/38
Tony Hawk's Pro Skater 4	Pink screen on boot	https://github.com/DaveTCode/GBADotnet/issues/38
Top Gun: Combat Zones	Cannot pick any options in main menu	https://github.com/nba-emu/NanoBoyAdvance/issues/105
Top Gup: Combat Zones	'A' button doesn't work in menu	https://github.com/jsmolka/eggvance/issues/17
V-Rally 3	Black screen on boot	https://github.com/ITotalJustice/notorious_beeg/issues/53
V-Rally 3	Sky flashes while racing	https://github.com/ITotalJustice/notorious_beeg/issues/54
V-Rally 3	Sky is black	https://github.com/DaveTCode/GBADotnet/issues/74
Wario Land 4 (USA, Europe)	Sound clicks	https://github.com/nba-emu/NanoBoyAdvance/issues/104
Wario Land 4	Audio gets distorted after playing intro	https://github.com/skylersaleh/SkyEmu/issues/11
Who Wants to Be a Millionaire (Europe)	Crackling sound	https://github.com/nba-emu/NanoBoyAdvance/issues/100
Yggdra Union	Hangs on title screen	https://github.com/DaveTCode/GBADotnet/issues/72
Yggdra Union	Hangs during intro	https://github.com/DaveTCode/GBADotnet/issues/72
Yoshi's Island - Super Mario Advance 3	Text box is all black	https://github.com/GhostRain0/GameBeanAdvance/issues/28
Yu-Gi-Oh! Destiny Board Traveler	Black screen on boot	https://github.com/ITotalJustice/notorious_beeg/issues/52
Yu-Gi-Oh! Ultimate Masters: World Championship Tournament 2006	Bad audio in title screen	https://github.com/ITotalJustice/notorious_beeg/issues/99
Yu-Gi-Oh!	Vertical lines rendered down screen	https://github.com/DaveTCode/GBADotnet/issues/73