Quote Originally Posted by gamemaster76 View Post
its world series baseball 98, im thinking either megaman the wily wars or crusader of centy
Ok, WSB98 is a 3MByte game while Mega Man and Centry are 2MByte games. That being said, I think you will only need one eprom. You should start by removing the two ROM chips and figuring out which one is the first half of the game ROM. It will probably be the bottom ROM chip though.

Do this by locating the Chip enable (/CE) pin of each ROM and tracing it back to where it goes. These pins should connect to one of the small chips on the back side. probably a 74ls138 or 74ls139. Let me know what you find.