Gender Not applicable
Eye color Blue
Location(s) Big Boo's Haunt

Lethal Lava Land

Damage Minor
Received When Killed Blue Coin

Star (Big Boo's Haunt-only)

Mr. Is are an enemy in Super Mario 64 and Super Mario 64 DS.


The name "Mr. I" is a pun on eye as this foe is a huge floating eyeball. Mr. I has white scalera, a blue iris and a black pupil.


Mr. I is a stationary enemy that floats in place. If Mario gets too close to it and stays there for too long, the Mr. I will shoot fire at him in an attempt to burn Mario. If Mario gets hit by the flame, he will get hurt and run around wildly.

How to deal with it

Mario can defeat Mr.I by running around it in circles, which after a few revolutions will cause the Mr. I to shrink and vanish.

Big Mr. I

In Big Boo's Haunt, there is a large Mr. I called "Big Mr. I", which is usually referred as a miniboss. To defeat it, Mario must reach the attic (read article for details) and find the room with the Mr. I, and kill it like any other enemy of the species.

Coins and Similarities to other Enemies

A normal Mr. I will drop a Blue Coin for Mario to collect, while the Big Mr. I will drop a Power Star upon its defeat.

The running in circles mechanic is the same method used to defeat the Snowmen in winter themed levels.


Mr. Is appear in Big Boo's Haunt and Lethal Lava Land.

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