Water bomb (object)

Water Bombs are large, cannonball-like objects in Super Mario 64 and Super Mario 64 DS. They are shot out of cannons on the Bob-omb Battlefield course, specifically the unusable cannon on the mountain (along with the one at the start in the remake). They are also found in the Battle Fort stage in the DS remake, falling out of the sky at random. They act like large, bouncing water balloons, exploding and dealing damage if they come into contact with the player character. After two hops, the Water Bomb will dissipate the next time it hits the ground.

Though the player can see the Water Bombs shoot out of cannons, they don't actually fall to the ground. Instead, the Water Bombs the player can get hurt by appear out of nowhere if they are in the larger field areas of Bob-omb Battlefield.