Gecko is the Mutant-type ability carried by Shuichi Iguchi, giving him a reptilian build along with the grip to hold onto vertical surfaces. Even measured against his lizard-blooded relatives it counts as a poor inheritance, and it only earns its keep in cities where walls are everywhere.
Gecko is a close-range Mutant power belonging to Shuichi Iguchi. It reshapes the body and adds adhesion, offering mobility rather than force. Supplementary material rates it as weak and unimpressive, a judgement that holds even within Shuichi's own reptilian family.
Two things come with the ability. The body takes on a reptilian appearance, and the user gains the capacity to cling to walls and other sheer faces.
The grip itself is no small thing. Shuichi can stay fastened to vehicles moving at speed without being shaken loose, which points to considerable adherence. What constrains the power is geography rather than strength: away from dense urban construction there is little worth clinging to, so the chances to use it thin out badly outside the city.

Naruto vs Luffy with the twist nobody asked for: Luffy tickled Hinata on date night, and she kind of liked it. We break down the whole fight and commit to a winner....

There are no women on Namek. That isn't an oversight, it's the biology. Why we handed Piccolo the one thing his own species rules out, and why it had to be trap soul....
Shuichi Iguchi, the villain known as Twice, is the character in My Hero Academia associated with the Gecko Quirk. It gives him a reptilian body and the ability to cling to walls and other vertical surfaces.
The Lizard Quirk belongs to Rapt Tokage in My Hero Academia and works along similar lines to Shuichi Iguchi's Gecko, which gives its user a lizard-like build and the grip to stick to walls.
The Gecko Quirk is a Mutant-type ability that reshapes Shuichi Iguchi's body into a reptilian form and lets him cling to walls and other sheer surfaces, even while attached to a moving vehicle.
The Gecko Quirk depends on having plenty of surfaces to climb, so it works well in dense urban areas but offers little use away from buildings and other man-made structures.
Gecko is generally rated as a weak and unimpressive Quirk, even compared to other reptilian-based abilities in Shuichi Iguchi's own family, though its wall climbing grip is genuinely strong enough to hold him onto fast-moving vehicles.
Looking for more on Gecko? The Dragon Ball Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the Dragon Ball anime series, manga, and official materials. Episode and chapter references are cited where applicable.
Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:
Official resources:
Daddy Jim Headquarters maintains this encyclopedia. If you spot an error, a translation issue, or something that doesn't look right, let us know.