You have Arkanoid on one side and o the other is Tetris. Is it possible to combine these two games? If you have friend near, invite him.
The left side is reserved for Arkanoid and the right is classic Tetris. Both sides influence the other. The Tetris player plays as usually but when he creates a solid line it appears to the Arkanoid player who breaks bricks. When the Arkanoid ball flies through the top, it gets on the other side making the Tetrisp player job more difficult. Fun for two, boring for one.