Kaiju

Kaiju (怪獣) is the Quirk used by Ryuichi Gojiyama.

Description
This Quirk is only seen while Ryuichi is on Trigger so it's true effects are unknown. However, this Quirk does allow Ryuichi to turn into a giant humanoid lizard.

This Quirk is likely a reference to, making this Quirk similar to Toho in this aspect.