Tentacruel, called Man-O-War in the Beta, is known as the Jellyfish Pokémon. The evolution of Tentacool, Tentacruel are large, blue jellyfish-like Pokémon with 80 poisonous tentacles that can stretch and contract freely by absorbing water. Their tentacles are normally kept short, but are extended to ensnare and immobilize prey. Tentacruel have large red orbs on their head that glow before using an ultrasonic blast, which causes rough waves around it.They live on rock formations on the ocean floor.  In Pokémon Mystery Dungeon: Blue Rescue Team and Red Rescue Team, Tentacruel is a member of Team Constrictor. In the anime, a giant Tentacruel attacks the city of Porta Vista in the once banned episode Tentacool and Tentacruel. Multiple Tentacruel appeared in Viva Las Lapras, under the ownership of the pirate Captain Crook. A group of Tentacruel appear in DP190. Tentacruel are owned by multiple trainers such as Marina, Cassidy, and Juan. In the Pokémon Adventures manga, wild Tentacruel are first seen in "Wake Up - You're Snorlax!." More prominently, it is seen in the possession of various villains such as Koga of the Team Rocket triad and Archie.