This article is a stub. You can help Altered Beast Wiki by expanding it. Hydra (unofficial name) is the boss from the Lerna stage in Altered Beast: Guardian of the Realms. It is a large three-headed serpent that is able to regenerate if the head and neck are not completely destroyed. Retrieved from "https://alteredbeast.fandom.com/wiki/Hydra?oldid=4557" Categories: Article stubs Bosses Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.