The only linux game that matters. In it, you play a "hand" with which you must squash little Bill Gates' running around. He is attempting to put windows on various computers such as NeXT, Linux, Sun, SGI, etc. You have to squash him before he can get it installed. Some machines are also networked and windows can spread to the networked machines as well.
You can find versions for Linux, Windows, Palm, NeXT, BeOS, and Java at http://www.xbill.org. There is also a Java Applet version there you can play.