As of now, there are no Kaiju Universe Codes accessible for use. If the idea of commanding a hideous monster in Roblox appeals to you, you're undoubtedly in the right place.

Most of the time, Kaijus in Roblox Kaiju Universe are bought with G-Cells or unlocked with Robux. However, there’s one Kaiju that’s unlockable through a quest for free: Voodon and Juju ...