From the Super Mario Wiki
Final Destination (終点, Shūten) is a stage that appears in every Super Smash Bros. game to date. It has absolutely no features, except for the large platform; so the combatants are not bothered by the stage in any way. In all four games, the Final Destination floats all around space, showing all the different landscape of the world. In the games, the places that the Final Destination travels through have changed.
Final Destination reappears in Super Smash Bros. Melee as an unlockable stage, unlocked by clearing the Event Match "Showdown". and is still where that battle against Master Hand is held in Classic mode. The player may also battle Crazy Hand, if the right conditions are met. Final Destination is also where the player battles Giant Bowser in Adventure Mode. If the right conditions are met, the player is also be able to battle Giga Bowser afterwards.
In Super Smash Bros. Brawl, the stage is available from the start. Like in the past titles, it is a simple platform. In The Subspace Emissary, Final Destination is the location of the final battle with Tabuu.
Final Destination returns in Super Smash Bros. for Nintendo 3DS and will also appear in Super Smash Bros. for Wii U, but with a different look, just like it did for previous incarnations. Like Super Smash Bros. Brawl, however, it will feature a background that takes place in space. It should also be noted that every stage has an alternate Final Destination incarnation. Also, in a new mode of Online Play, the Glory Mode, these versions of the stages will be the only stages available. Stages in their Final Destination form will be stylized as Stage Name (Ω Form).
Super Smash Bros. Brawl
Not in My Music
Super Smash Bros. for Nintendo 3DS
Trophy Information from Super Smash Bros. Melee
Ω Forms (Super Smash Bros. for 3DS)
Ω Forms (Super Smash Bros. for Wii U)
Names in other languages