You mean like, two players on the same computer? Then i recommend an emulator like, PSX, SNES, SEGA Genesis or some other great console.
But of course you need to own the games you are going to play on the emulators, not that anyone cares, but... OH YEA!
Then to the pc games i know with two player, Serious sam 1 i don´t actually know if there´s that in SS2.
More, i dont know! Peace out. :thumbup: