Catastrochorus

Catastrochorus is an Emblem Heartless boss in Kingdom Hearts III. It is fought near the beginning of San Fransokyo. It is also fought in Battlegate 13 in the Keyblade Graveyard.

Kingdom Hearts III
While Sora, Donald, and Goofy help the newly upgraded Big Hero 6 take out Heartless attacking San Fansokyo, a Catastrochorus jumps into the middle of the street. As the lesser Heartless were still attacking the city, Sora, Donald, Goofy and Baymax destroy the Catastrochorus, while Big Hero 6 takes care of the other Heartless.