Chain Reaction Shooter, a puzzle game, is free for you on www.flash-game.net. The goal of this game is to get the block of circles on the screen disappear. Move the mouse to target and left click to shoot circles. You are supposed to shoot the circles to others with the same color to swap them. Only the groups of at least three same figures near each other will disappear. Remember, once the structure of the block changes, it will rotate to the heavier side. Good luck!