Play an exterminator tasked with destroying invading pests in a mushroom garden. Using your gun, you must destroy the advancing centipede as it makes its way from the top of the screen to the player area. Mushrooms are scattered about the screen, and the centipede descends a line every time it encounters a mushroom. You must also avoid or destroy spiders, fleas and scorpions, and watch out for poisoned mushrooms that might send the centipede spiraling immediately down to your level. Destroy the centipede to advance to the next wave.