Everyone loves hacked versions of their favorite Atari 2600 game. Here's some you can download for free! (You need an emulator to play them, though.) To download, right-click the link and choose "Save Target As" (May be different if you're using like an Apple or something.) By the way, if your hack is listed here and you want it removed from this page, e-mail me.
Boring Pac-Man No ghosts!
Boring Donkey Kong No enemies or barrels!
Pac-Man (hack) way better than the original. Has a new maze, too!
Pong 2-D Pong, only it's on a tennis court!
Wolfenstein Venture hack.
Xaxyrax Road a Freeway hack by Charles Morgan