Bob-omb Blasting is a minigame in Super Mario Galaxy. It is one of the four minigames along with Rolling Ball, Ray Surfing, Bubble Blowing. This minigame appears in the Battlerock Galaxy and the Dreadnought Galaxy. When Mario or Luigi arrives on a small platform the minigame takes place on, he is told by a furious Gearmo that people have been dumping garbage in the ammo depot, which is supposed to be kept clean. Mario or Luigi must use the Bob-ombs to destroy to blow up all the trash in under thirty seconds. The Bob-ombs take 10 seconds to explode. The yellow circles mark a good place to throw it. However, these circles only appear in the Battlerock Galaxy's Bob-omb Blasting. When Mario or Luigi succeeds, the Gearmo rewards him with a Power Star.