Fill 66% of the screen with Fillers to complete the level. To create a Filler, click anywhere on the screen and hold down so it can start growing. Beware of the Killers - if they collide with your Filler while it is growing you will lose it. If you run out of Fillers before you fill 66% of the screen, the game is over. Each new level you'll get more Fillers on your disposal, but also more Killers to interrupt you ! Enjoy !!!