The player must fight two Pikachus and a Jigglypuff on Pokémon Colosseum in a 1-stock free-for-all battle. The player succeeds if they KO all of their opponents, or fails if they get KO'd. The player may get aid from the Poké Balls that drop on this event.
When first incorporated into the game, this event was the very first on the list as the #1 event, it was titled Catch 'em all! and its description read: Be the last one standing in this Pokémon scuffle!