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Background information
Feature films
Television programs
Video games Undertale (2015)
Park attractions
Portrayed by
Portrayed by
Performance model
Designer Toby Fox
Inspiration nerdbotmk2 (partially)
Honors and awards
Character information
Full name Mettaton
Other names Mettaton EX

Mettaton NEO MTT

Personality flamboyant


Occupation TV-Show Host

Human-Killing Robot

Affiliations Alphys
Goal Become a human celebrity
Home The Core, The Surface (After Pacifist Route)
Relatives Alphys (Creator)
Allies Alphys

Frisk (After Pacifist Route)

Enemies Frisk (All routes excluding Pacifist Route)
Likes Papularity, Ratings
Powers and abilities
Weapons Arm Cannon (NEO Form)

Mettaton, sometimes shortened to MTT, is a robot designed to destroy humans and was introduced in the 2015 RPG Undertale. They were designed by Alphys to help Asgore destroy humans.

Other Forms


Mettaton EX

Mettaton EX

Mettaton EX is a more humanoid version of Mettaton that is more efficient at fighting. This form often shows off its legs.

Mettaton NEO

This form of Mettaton is the strongest form of Mettaton. It has a brand new arm cannon (similar to Mega Man's) and only 

Mettaton NEO

Mettaton NEO

appears in the Genocide Route.

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