Octopus

The Octopus is a large, black octopus originating from the Game & Watch title, Octopus. It is also the Final Smash of Mr. Game & Watch in each of his appearances starting with Super Smash Bros. Brawl. When used, Mr. Game & Watch transforms into the Octopus.

While he can move in this state, Mr. Game & Watch can still only move like a normal character; he is able to move around across the ground and jump, and can fall off the stage. Octopus damages any opponents that make contact with it, and pressing the attack buttons causes the tentacles to extend, which gives it more range to hit others. The front side of the octopus deals more damage than the back.

In Super Smash Bros. Brawl, there is a trophy of the Octopus, which shows it attacking Luigi as Mario observes in shock. There is also an Octopus trophy in Super Smash Bros. Wii U, in which it can be obtained by clearing All-Star Mode with Mr. Game & Watch. Like the Super Smash Bros. Brawl trophy, Octopus is also shown attacking a fighter, this time King Dedede, and Duck Hunt is the fighter observing in shock.

In Super Smash Bros. for Nintendo 3DS / Wii U, the octopus has a rainbow-colored outline, similar to the glow a character has after collecting a Smash Ball.

In Super Smash Bros. Ultimate, the Final Smash is no longer controlled by the player. After transforming, Mr. Game & Watch automatically moves forward, grabbing any opponents in his way and dragging them towards the right side of the screen, instantly KO'ing them. Mr. Game & Watch then reverts to his regular form at the position he initiated the Final Smash.