The ball bounces against the bricks wich are higher in the playfield, and against closed sides of the playfield. When a brick is hit, it dissapears. When the player has hit al the bricks, He goes to the next level. Each level there is an other pattern.
In higher level the player has to hit the bricks twice before the disapear, and with enemie space aircrafts. Some bricks have falling Power up Capsules, wich make the players hitplatform wider or smaller, activate a lasercanon or even let disappear all the bricks.