Press either the [L] key or the [J] key to change the angle of the shooter and press [K] to shoot.

You need to get 3 or more bubbles of the same color touching each other to bring down all three and any bubbles attached to them, except for the ones in the top row.

The first 3 falling bubbles get 1 point each, each additional falling bubble gets 2 more points. If the match making bubble bounces on the edges, you'll get 5 more points.

The game has 10 levels. When you finish a level, you get a bonus of 100 points.

The game is over if a bubble gets on the bottom edge of the playing area.