several comments...

you will find a lot of diverse implementations on the games. while you may recover the eprom well enough you still need to know (or deduce) the memory map of the electronics boards the micro ran from. this is the biggest challenge to arcade-paleoentology. you may find that if you focus on the products of one company, you'll be able to apply your deduction to various games.

this is actually a good exercise for an assembly language programmer. through the analysis of the machine code, a clever chap can deduce the memory map, function, microprocessor used, and then deduce the algorithm and purpose of various sections of code. at one time in my life, i did this very activity for my hobbytime.

As to running the program/game on old systems... waste of time unless your a purist collector. i'd recommend deducing the entire program and then writing it C for a PC.

if anyone cares, the first game i completely revealed was a piranah game made for the miniterm associates merlin graphics card. mostly i went after cpm operating systems and bios.

duh