Well I think working as a team is part of the experience, and more fun. Also most people here probably don't go to one of the registered schools, so the only way to participate is being on a team with someone able to join...
In case people wan't to practice, I noticed the game looked somewhat like one I encountered before :
http://apocalyx.sourceforge.net/guntactyx/As I recall the language is C++, and it looks similar to the screen on the site. Not as fun as DB though And their leagues have a 32 kb limit to the code submitted, which can be a real pain since the language invites you to do proper code structure and then you're forced to destroy it all later on when you need space. (You can choose to increase the cap though, but then it no longer qualifies for the leagues.)