The game is played by manipulating the paddle at the bottom of the screen to the left and right to hit back a ball that moves while reflecting on the screen. When the ball hits a fungus, the fungus disappears and the ball bounces back. The game is completed when all the fungi on the screen disappear by repeating this process. When the fungus disappears, a capsule that fission the ball may be dropped. There are 9 stages in total.