Pokémon Colosseum

Pokémon Colosseum, formerly known as Pokémon Stadium 3, is a starter stage in Super Smash Flash 2 coming from the Pokémon series. This stage's concept is similarly based off on Pokémon Stadium (from Super Smash Bros. Melee) and Pokémon Stadium 2 (from Super Smash Bros. Brawl), in the sense the stage can change into numerous forms based on Pokémon types.

Layout
This stage has one main platform and two small platforms on above the main platform. Depending on the image that's shown on the main screen, the stage will change it's layout. There is large screen that shows the Poké Ball symbol. There is a crowd that is cheering. There are lights behind the screen moving back and forth. There is a city that can be seen.

Bug, Steel and Ghost layouts have been seen so far.

Music

 * The main music track is titled Trainer Battle (Pokémon Red and Blue).
 * The alternate track is the Champion Battle from Pokémon Gold and Sliver.

Tournament legality
This stage is a neutral stage, due to its static, highly balanced stage layout when hazards are disabled. Some players even argue that the stage is more balanced than Battlefield, as there is no top platform for more vertically-inclined players to camp with. However, due to lag-inducing lighting effects, this stage is currently banned in online play.

Origin
This stage is obviously inspired and modeled after the Pokémon Stadium stages that appear in Melee and Brawl. These stages were in turn based on the Pokémon Stadium games.

The origins of the stage's name stems from the game, Pokémon Colosseum, which could be considered the third game in the Pokémon Stadium series.