misc stuff..
looks like MegaPhoenix needs better handling of some flags rather than rand(), overclocking the 68k by stupid amounts allows all the graphics to copy, needs more investigation.

I have however hooked up the rest of the player controls based on test mode..
It looks like the other port is multiplexed somehow, or is some kind of serial port.

still don't really know where most of roms6/7 map, even after playing through a few rounds..