Looking for an online multiplayer brain exercise that you can play with your friends? This is it! Battle Bricks Puzzle Online has two game modes. You can either open a private game that you can play against your friend, or opt for a fast game in which you are matched automatically with another player. To win the battle, you'll need to lower the blocks and create complete lines. Use your arrow keys to move the blocks around or change their shape. Knock your opponents out with your quick thinking!