Bunnicula becomes a cat after absorbing a catnip pillow.
- When Bunnicula become cat, he still have vampire powers and when he use bat wing as cat is similar to Vampire Cat from Frankenweenie.
- When Chester showed a picture of a cat and saying over 9000, he was referring to the anime series, Dragon Ball Z.
- The title name of this Episode is a reference to Cataclysm, Cat Noir's power from Miraculous: Tales of Ladybug & Cat Noir.
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