For some odd reason, when pasting the 3rd stage to FCEUX 2.2.2, everything is the same, until up to frame 4026 of the converted run, where for some reason the bulldog I'm on is somehow pushed 4 units ahead on the X address. Even stranger is that the lag seems to have occurred at the exact same locations as running on the previous emulators, along with having the same amount of lag.
Since I'm not sure which behavior is correct, I'll just continue this on FCEUX 2.2.2, sync it with BizHawk, 2.2.2, and 1.5/1.4 and see which version console verifies :P
Edit: Btw, the WIP was done with
this patch, but the odd thing is that when run on a 1.5 WITHOUT the patch, it desyncs at an earlier point, when I get hit by the snail for the first time.
Which means 3 different behaviors of the game on this stage depending on the version of FCEUX >.>