You can now play Card-Jitsu in the Dojo. It is like rock-paper-scissors and is a lot of fun. The room is really crowded so sometimes it is really hard to play.
The game is played with cards and it fire beats snow, snow beats water and water beats fire. Higher numbers beat lower numbers most of the time. You have to play the game a lot to get to Black Belt and then you can play Sensei in a special mode to earn your ninja mask.