Many prototype Maquette Monsters were created in hopes that they would be of use to GUYS in the future to help defend Japan. One of them was a Maquette of Ultraman Mebius himself, in case Mebius was not there to help them (to Mirai's dissatisfaction). When Maquette Zetton went out of control and tried to destroy GUYS's central computer system, GUYS tried to fight back with the Maquette Ultraman Mebius. Unfortunately, the Maquette Ultra was given too many orders by GUYS until it was confused into attacking the Maquette Zetton with his Mebium Shoot, which was reflected back at him in Zetton's signature style. As the real Ultraman Mebius came to the rescue, the Maquette Ultra's Color Timer went out, causing the Maquette to disappear into particles. After Maquette Zetton was destroyed, it is assumed that Maquette Mebius was shelved along with the rest of the prototype Maquette Monsters.
- This is the only capsule monster based off an Ultra.
- Although naturally an Imitation Ultra Warrior, this Mebius was neither made with the intention of framing the original, nor having affiliated with a villain.
- Maquette Mebius' defeat is a frame-by-frame reenactment/tribute of Ultraman's death in Ultraman.
- Height: 49 m (in cyber world)
- Weight: 35,000 t (in cyber world)
- Origin: GUYS Phoenix Nest
- Weakness: As with all Maquette Monsters, "Mebius" can only stay materialized for the duration of 1 minute.
- Powers and Weapons
- Mebius Brace (メビウスブレス Mebiusu Buresu): A copy of himself, he is armed with a Mebius Brace that allowed him to do these following abilities.
- Mebium Shoot (メビュームシュート Mebiūmu Shūto): Maquette Mebius can perform the Mebium Shoot by placing his right palm over the Mebius Brace, then extending his hands in different directions horizontally, and then bringing them together above his head, creating an "infinity loop" before forming the "+" formation. However, it is slightly weaker than the original.
- Mebium Slash (メビュームスラッシュ Mebiūmu Surasshu): Maquette Mebius can fire a tiny arrow-shaped blast from his wrist, like the original can. However, it is not seen as Aide Toriyama told Maquette Mebius to use the Mebium Shoot instead.
- Mebium Blade (メビュームブレード Mebiūmu Burēdo): Although not seen, GUYS confirmed that Maquette Mebius can conjure up an imitation of the Mebium Blade from his wrist.