I've uploaded a tiny game I did at 0x10h 2.0 back in May. It's called Prehistoric Dentist - Hot Pursuit (thanks, Video Game Name Generator) and was a last-ditch effort to save the honor of our team (besides surfing the web and drinking beer we had worked on a Pac-Man inspired game that mostly stood out for its lack of fun). Despite its shortness (estimated production time was 20 minutes and it's possible to play through in 2 seconds, if you know what you're doing) it was well-received.

But enough talk, here's the link: PrehistoricDentist.exe
The game is written in C#. It was developed and tested on Ubuntu with Mono. I'm pretty sure it works on Windows too, using .NET.

More about 0x10h: 0x10h stands for "16 hours" and is a game coding contest and conference. It will take place for the third time on January 10th and 11th, 2009 in Darmstadt. I will be there again and maybe we'll even write the sequel to Prehistoric Dentist.
Stop by if you're interested in game development. I'm sure it will be fun.