The Catastrophe Gore Nightmare (カタストロフゴアナイトメア, Katasutorofu Goa Naitomea), or simply Catastrophe (カタストロフ, Katasutorofu), was a Gore Nightmare that existed within the deepest parts of Baku Yorozu's subconscious mind and served as the source of Kamen Rider Zeztz's power.