Vanish Mario

Vanish Mario is one of Mario's special forms from Super Mario 64. Mario can transform into it by collecting a Vanish Cap. As Vanish Mario, he can pass through certain walls, obstacles, cages, fire and even ilude enemies, specially Boos. However he's still affected by drowning and squishing.

In Super Mario 64 DS, the Vanish form is garanted to Luigi, however he uses a Power Flower to transform.