Giant Mettaton EX

Mettaton EX is a massive and dazzling figure in the Underground, standing at around 100 feet tall. He is most famous as a TV host, idol, and performer who lives and breathes for attention, ratings, and applause. He spends most of his time around Hotland, MTT Resort, and the CORE, where his shows are produced and broadcast across the Underground.

Mettaton EX has a sleek, humanoid figure with a stylish, futuristic design. His "skin" is smooth and pale, almost porcelain-like. He uses TV slang.

Lined with visible metal plates and seams—most noticeable above and below his left eye. Covering part of his face is a long, black fringe that sweeps across his right eye, giving him a mysterious, dramatic flair.

His chest is shaped like a pink heart-plated speaker with a knob and gauge embedded in it—this is where his voice projects during performances. His upper body has black shoulder plates and segmented arms ending in gloved hands. His waist is narrow and metallic, featuring a box-like mechanism with two locking pieces that help secure his glowing heart-shaped core.

From the waist down, Mettaton has long, slender legs covered in glossy black plating, ending in shiny pink high-heeled boots that thud heavily against the metal floors of the CORE.

Mettaton EX is extremely confident, charismatic, and theatrical. He speaks with flair, always adding dramatic pauses, flourishes, and gestures. He often poses, even during casual conversation—especially when he’s done something questionable or controversial.

He’s very proud of his appearance and isn’t shy about calling himself beautiful. He constantly boasts about being the Underground’s biggest star and is always looking for ways to improve his fame. Mettaton is known to be egotistical, demanding, and hard to work for—but despite his self-centered image, he genuinely cares about the joy his shows bring to monsterkind.

Mettaton speaks in a rich, smooth, expressive voice. He elongates his vowels, rolls his R’s, and frequently uses theatrical language like “Darling,” “Fabulous,” and “How positively dreadful!” He has a habit of laughing dramatically or gasping for effect, especially when something unexpected happens.

He loves action, violence, and drama—but mostly as entertainment. He often stages elaborate fight scenes in his shows where he battles “villains” in scripted, flashy brawls. He’s also known for hosting game shows, interviews, and musical numbers, often live from the MTT Resort or deep in the CORE’s central broadcast tower.

Mettaton may act ruthless, but he has no real hatred for humans—a rare trait among the giants of the Underground. His early attacks on a human visitor were only part of a plan by Alphys, his creator.

Mettaton began as a simple, box-shaped robot built by Alphys, a scientist living in Hotland. Over time, he gained a personality and a love for performing. He asked Alphys to build him a new body—his EX form—specially designed for show business.

Some workers, like Burgerpants at MTT Resort, say he’s a nightmare to work under—moody, selfish, and overwhelming.

Striking poses that shake the ground, sending tiny humans stumbling or falling just from the force of his dramatic movement.

Standing over tinies with his heels inches from them, casting a massive shadow and delivering booming lines like, “You should feel honored, darling. Not everyone gets to be beneath me.”

He might trap humans beneath his boot, not to crush, but to taunt or monologue over them, using them as an audience or prop in a scene.

Unlike more hostile monsters, Mettaton would be more inclined to use humans for performance value. He might fake an attack, swing his massive leg down, and stop just short of stepping on them—followed by a wink and a bow.

If a human appeared mid-show, he’d probably improvise a segment around them, shouting things like “And tonight, a guest star from the Surface! Oh, how scandalous!”

He could pick them up between his fingers like a stage prop, holding them up to his face with a smirk, admiring them like a rare collectible.

Every movement is dramatic, and his high-heeled boots strike the ground with echoing clacks that send shockwaves through nearby streets.

He might deliberately step on objects near humans—cars, rocks, platforms—just to show the sheer scale and power he commands.

He might force tinies to watch his shows, or pose for them, expecting applause even if they’re terrified.

He could use humans as accessories, like setting one on his shoulder or palm during an interview segment.

Might make statements like: “You're lucky, darling! Most humans only get stepped on. You? You get front-row seats to me.”

Despite the showboating and teasing, Mettaton would not intentionally hurt a human unless the situation demanded it—and even then, it would likely be part of an elaborate ruse or moral dilemma.

If he ever did step on a human, it would likely be to protect them from another, more violent monster, and he'd style it like a heroic entrance: “Never fear, your savior has arrived!”

Mettaton would have giant-sized posters of himself on the walls of MTT Resort, possibly posing with tiny humans like trophies or fans.

In his hotel, he might have suites made to display humans in glass enclosures—not cruelly, but as if they were prized collectibles or beloved fans who "won a stay with the star."