Nothing is known of their appearance, except for their clothes, because they are never actually seen in the series. All that is known about the Metamorans is that Goku met them in the Other World sometime between the Cell Games and Great Saiyaman Sagas, which is the time period that they teach Goku fusion.
- In the spin-off manga Dragon Ball Heroes: Victory Mission, when in his Neko Majin V form, the Neko Majin Abra wears clothes similar to those of the Metamorans.
- In Dragon Ball: Xenoverse, the Majin exclusive Light Heart Suit are also resemble Metamoran clothing.
- In Dragon Ball Xenoverse, Gogeta's Metamoran Fusion attire can be obtained by the Future Warrior. If the Future Warrior wears Gogeta's Clothes and talks to Elder Kai while he's their Master, he will recognize the garb as the one produced by Fusion and will wonder why they choose to do such a silly pose in order to fuse, before stating that if one is going to fuse by posing they should pose in style. In the game they are referred to as Matamorans.
- In Dragon Ball Xenoverse 2, Gogeta's Clothes once again appear as clothing options for the Future Warrior. Additionally, the Skillsets for Gotenks, SSJ Gogeta, and SSJ4 Gogeta are all known as Matamoran Clothes (Gotenks has 3 skillsets, while SSJ Gogeta has 2 skillsets, and SSJ4 Gogeta has 1 skillset).
- "Metamoran" may be based on the word metamorphosis, which refers to a change to a transformation or a noticeable change in character, appearance, function or condition, like with the result of a Fusion when performed.