When you first enter a level, you can view all of it by leaning or stepping left and right.
Start by reaching up with your hand. A ball will drop down. You can use either hand, and you can even reach up at different places to drop the ball exactly where you want it!
You control the two paddles with your hands. Launch the ball by swinging your hand so that you hit the ball with a paddle.

The ball will fly in the direction of your swing, so swing sideways or upwards to aim the ball. Push forward from behind the ball to launch it straight ahead.
Your goal is to clear out all of the cubes in each level by hitting them with a ball, or using any other means of destroying them. After launching the ball, keep it in play by hitting it with a paddle as it comes back to you (the ball gets a green glow when it's a good time to hit it).

If you miss, you will lose a ball. After losing 5 balls, the level ends and you'll have to try again.
Remember to aim carefully! If you want the ball to bounce straight ahead, keep the paddle still. To guide the ball towards a certain direction, swing your hand as you hit the ball. Big swings work better than short movements.

In many levels, when you've cleared almost all cubes and reached the marker, you'll reach
Boom Time! Normal balls are replaced with Fireballs.
Fireballs can be aimed just like normal balls, but they'll seek out cubes in the general direction of your hit, and will explode on contact!

You can play for as long as you like, but beating the silver or gold time of a level will award you with a medal - and stars for unlocking levels.