Bob-omb Battlefield

Bob-omb Battlefield is the first course in Super Mario 64. Set in the midst of a war between the two races of Bob-ombs, it continues the trend of grassy fields for opening levels in the Super Mario series and features a large mountain with a spiraling path up it. Along with that, other notable areas include a floating island, and a cage guarded by a Chain Chomp.

Phenomena
Some players have reported encountering the White-eyed Chomp here. This often serves as a warning that the copy of the game is heavily personalized, and contains more dangerous and rare Anomalies such as the Wario Apparition, or, more commonly, the Fourth Floor.