Zumo is a free flash game with an interesting take on the Tetris or Gems gameplay. You are in the center of a maze of magic balls that slowly move towards you. You shoot out colored balls which you have to match up with the stream of colored magic balls that are moving towards you through the maze. If you get three colored magic balls in a row they pop and you get points. Once you have matched all the magic balls in the level you move on to the next level. The grpahics are good and the game was pretty fun so if you liked Tetris, Gems, or Bejeweled give this a shot.