I just added all the multiplayer challenges (well, all that I have unlocked so far) to the wiki and updated the old "Challenges" page to focus only on single player challenges. I had to make new articles for every challenge, so there is a lot of missing info. I only put in the very basics and it still took me a few hours.
Please add anything you know, and remember to come to the wiki and edit when you do learn more.
Thanks! Juicestain09 09:42, May 28, 2010 (UTC)