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Boo
Boo
Mario symbol
Official artwork of a Boo from New Super Mario Bros. Wii.
Universe Mario
First appearance Super Mario Bros. 3 (1988)
MG appearance(s) A Super Mario World
Super Smash Flash 2
Species Ghost
Gender Varies
Alignment Evil
Created by Shigeru Miyamoto
Company Nintendo

Boo, known in Japan as Teresa (テレサ), is a ghost enemy hailing from the Mario franchise.

Character description

Boos are common ghost enemies in the Mario franchise that first appeared in Super Mario Bros. 3. Normally found in Ghost Houses and other haunted places, they are a type of white, spherical ghost with menacing and normally open mouths. Known for their large tongues and small "arms" of some sort, they float in the air and pursue Mario or Luigi when not being looked directly at. However, the most distinctive characteristic of the Boos is their shy personality, where they cover their faces when someone looks them directly at the face, uncovering it once the subject turns back around. They also cannot usually be defeated through normal means such as jumping on them and often can only be defeated when hit with a Super Star power-up or when light shines on them.

In A Super Mario World

Boo in A Super Mario World

A Boo, as it appears in A Super Mario World.

A Boo appears in the McLeodGaming cartoon A Super Mario World, where it briefly appears in the first episode as one of the monsters that Mario fights with the Master Sword. It becomes visible in the air and attempts to attack Mario before he slices it, killing it quickly.

In the Super Smash Flash series

In Super Smash Flash 2

As a background character

Boo with Luigi and Sandbag

Boo appearing on Waiting Room's Halloween themed.

A Boo appears in Super Smash Flash 2 as a background character on the Waiting Room's Halloween theme, one of multiple holiday-inspired versions of the stage. It can be seen floating above the left couch in the background.

As an enemy

Unknown This article/section contains information of a formerly confirmed feature.

The original source that confirmed the subject has otherwise become obsolete, outdated or deprecated and has yet to be re-confirmed by an official modern source.

Boo
Boo2
Mario symbol
Boo in Super Smash Flash 2.
Universe Mario
First appearance Super Mario Bros. 3 (1988)
Stage(s) it appears Mushroom Kingdom
BOO

Boos in Adventure Mode.

Boos were initially confirmed to appear as enemies in the Mushroom Kingdom level of SSF2's Adventure mode. Any further information in unknown and whether it will appear is no longer confirmed.