Alley Cat NES port (WIP)

Thinking about making a port of the DOS/Atari classic Alley Cat to the NES. Sorry for the low volume but OBS decided not to cooperate with MESEN (I recorded it with MESEN because FCEUX glitches a bit on the intro, unlike on real hardware :^) ).
This is where I am so far. Still an early build, but I'm gonna make some progress in the coming days