Goomba

Goombas are the most common enemy in Super Mario 64, appear in the most courses. They are brown mushroom-like enemies. They roam aimlessly until the player walks by, which will cause it to charge at the player. Goombas do damage on contact, and are defeated by being jumped on. In Super Mario 64 DS, they have a boss variant known as Goomboss.

Unused Model
Found in the files of Super Mario 64 are remnants of unused model bits for Goombas.

Low-Poly Goomba
Found in the files of Super Mario 64 DS is a low-poly Goomba model. It is unknown what this would have been used for, though it could have been placeholder or used on regular Goombas when they are far away to save memory.