Defend the center of the field from blocks approaching from all sides.
Each turn new blocks appear on the edge of the screen. Shoot balls at the blocks to break them. Blocks give more and more points with each new round. How many turns can you survive?
Blocks have different colors, depending on how many hits they can take. Choose a good shooting angle to hit as many blocks as you can with bouncy balls. You can also collect additional balls in each round, which will be necessary as blocks become tougher with each round.