Today I bought a used Xbox, regular one, not the 360 (49.99). I also bought an additional copy of MechAssault 1 (2.99). My son already had another xbox and another copy of the game. We hooked them up to the home network and PEW PEW! We had a blast!
I also saw a copy of Mechassault 2 at 6.99, I'll probably get that one too. What other games are fun to play in multiplayer mode for the old xbox?
We also have a Wii and love to play Metroid III - Corruption.