Bionic Command (U):
Movies play back fine, but during a laggy part of this game (such as the end of Area 6 or Area 9), loading a state while recording can cause the game to freeze, stuck on the same frame with a music note just playing. I've had this happen both with 100% speed play, 50% speed play, and when using frame advance.
Note that this isn't the emulator freezing, as the frame counter still goes as normal - I'm guessing it's improper loading of the state, which when emulated is just garbage.
Sometimes this can be undone by loading the state again, or previous states. Sometimes not. Sometimes, I can load the same state over and over, and every 3rd or 4th time will not freeze, and the others in the chain will freeze with different screens, but follow a pattern.
It makes TASing some parts of this game very tedious, as I'm loading states to try and recover, then stopping the movie, closing FCEU, reopening, replaying the movie in read-only, and loading a previous state to watch up to the point of freezing, and trying again, hoping it won't freeze this time.
This happens in 0.98.16, 0.98.15, and even 0.98.12.
I haven't seen this behavior with other games, though I haven't been looking for it.
<Swordless> Go hug a tree, you vegetarian (I bet you really are one)