Vanish Cap

The Vanish Cap is one of the three caps in Super Mario 64. Once Mario drains the moat, he can access a secret area under the drained moat called "Vanish Cap Under The Moat". Once he steps on the blue switch and can be found in every blue blocks he finds. When he uses it, he turns invincible and walk through many thing as and can't get hurt.

In the DS version, Luigi turns invisible when he gets a power flower, but there's no blue block or vanish cap. There's few differences, Vanish Mario can walk through my ice, as Vanish Luigi can't. Luigi can move horizontally and vertically, while Mario only moves horizontally.