Majora's Mask

Majora's Mask is a "cahracter" in the Legend of Zelda series. So far it's only appearance was in the The Legend of Zelda: Majora's Mask, where it was the title character and main antagonist. It attempted to destroy the land of Termina by forcing Termina's moon to crash into it, but Link defeated it. The evil inside the mask died, and the mask became normal.

In Super Smash Bros. Melee, Majora's Mask appeared as a trophy. The way to get the trophy was to beat the event Trophy Tussle 3. In the event, the player must defeat the other competitors on a giant Majora's Mask stage. The horns prevented the player from getting knocked aside from the center, but if the player went over the horns and far to the side, they would fall to their doom. Besides the layout of the stage, there were no side effects.