Multiplayer on a Single Computer

[Infoceptor]

Hey, i was wondering if anyone knows any good pc games that allow for multiple players on a single computer. Some that come to mind are Serious Sam, Heroes of Might and Magic and even the old side-scrolling shooters/fighters. Any ideas are welcome, even if the game is old... its the gameplay and fun that matters. Thanks in advance.

[AmishSlayer]

Wacky Wheels.

Like Mario Kart...probably almost as old.

Hunter Hunted - Had lots of fun going head to head with my bro on that one

Micro Machines - Was pretty fun, up to 4 or more players for that one I think

These are all old enough that they'll be in DOS...and I have no idea how to run them from XP.