The following is a non-exhaustive list of games that have emulation bugs. Note that there are probably more games that are buggy, but these are the ones that have been verified to not work correctly.
(this list consist mostly from games from the Mesen-S thread on the NesDev Forums, the lists of tricky-to-emulate-games from Sour's Snesdev Wiki and the Snesdev wiki, the Why accuracy matters-article by Near and additionally some other games that I happened to have tried that have emulation bugs)
Generally, at least the following general issues seem at play:
- Something with SPC-CPU sync causing freezes in SPC-upload loops
- Actraiser 2
- Freezes after splash-screen (stuck in SPC upload)
- Air Strike Patrol
- Bugs due to not emulating mid-scanline effects
- Battle Grand Prix
- Audio freezes after pressing start (SPC stuck in upload loop), game freezes at following SPC upload
- Death Brade
- Match ends instantly
- Firepower 2000
- Garbage line on title screen background
- Hiouden - Mamono-tachi to no Chikai
- gets stuck on SPC upload on message after after Wolfteam-intro
- Hook
- Intros have incorrect colours and glitchy text
- Mecarobot Golf
- Some odd flashing of the ground in-game during movement
- Sometimes freezes (?, hard to reproduce, happened once in lesson mode)
- Illusion of Gaia
- Title screen is silent
- Freezes when pressing start (stuck in SPC upload)
- Jurassic Park
- Sides of screen are not masked properly
- Power Drive
- Broken graphics on name select screen
- Cannot control once in-game, only pause
- Rendering Ranger R2
- Freezes on boot (stuck in SPC upload)
- Soul Blazer
- Music sounds slightly off (missing drums on title intro)
- Tales of Phantasia
- Sound effects and music sound off (wrong samples?)