Greetings! Your Galaga and Galaxian ports are superbe!
You asked for suggestions: I (and others) would really
love proper versions of the terrible U.S. "Quicksilver"
ports of Data East arcade games such as KID NIKI.
The NES version is superior to the arcade and, like most
NES games, is 6502 that can easilly be disassembled.
Thanks for listening & keep up the excellent work!