Mizzo
Mizzo appears as an enemy in the Subspace Emmisary mode in Brawl. It can only be found in a display room in the Battleship Halberd Exterior along with other Subspace enemies, and can be seen attached to two blue tentacles and attemps to swim around.
Mizzo is believed to have been captured by Meta Knight during the assault on the Battleship Halberd and displayed and studied for weaknesses, and Tabuu didn't bother making more.
Trophy description
Within the battleship Halberd, there's a display room where a number of enemies are on display. On the way there, a number of different enemies obstruct your path, but one enemy appears only in this display room. That enemy is Mizzo. With a round body sprouting arms and legs, its appearance and swimming motions make for an extremely bizarre being while being a beta creature before the final game.
Game: Super Smash Brothers Brawl (2008)
