Jim pointed out a fun game to me called BalliesShoot for my BlackBerry PlayBook. I love games like this because they are so easy to pick up and don’t have complex controls. You simply touch the left or right side of the screen to control your “Ballie” in each direction. The Ballie shoots while you move him to get all of the invaders moving down the screen while avoiding their missiles.
For $0.99 I thought BalliesShoot was a pretty sweet deal. You can find it in App World here.