Castle Crashers is one of the greatest co-op titles on Xbox Live Arcade. Old School beat em up gameplay, charming, hilarious style, and 4 player co-op are a recipe for a good time. Apparently there are many others who share our high opinion of the game. In fact, that number is quite large: the Castle Crashers leaderboards include over 900,000 players!
To celebrate, Behemoth is running a contest. All you have to do is guess the date and time that the leaderboard reads 1,000,000 players. The prize is unknown at this time, but is promised to be "awesome, nay, SPECTACULAR!" I'm sure it will be quite amazing.
Speaking of amazing, have you checked out the adorable Castle Crashers figurines? I know at least one staff member has a set, and I think they'd look great next to my Transformers Mighty Muggs...