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)
- Air Strike Patrol
- Bugs due to not emulating mid-scanline effects
- Firepower 2000
- Garbage line on title screen background (needs per-cycle rendering instead of per-line, like Air Strike Patrol)