Fill 2/3 of the level to advance. For added strategy, play the game on Normal and press space to freeze the balls in place. Left click anywhere to create a filler ball. It will continue to grow until it hits a bouncy ball and bursts, hits another filler ball or until you release the left mouse button. Press space to freeze all the bouncy balls (drains your freeze). How many levels can you get through? Have a fun time playing Filler 2!