Talk about a vicious circle! Use your circle to destroy the moving orbs in Cirplosion, a challenging online arcade game. Hold down the mouse button to grow your circle. Release the mouse button before your circle touches a moving orb or an edge. Then, position your circle over the orbs and click again. Kaboom! With 12 tricky challenges to unlock and even more levels to explore, Cirplosion will make your head explode.