In the Smash series, Pokeballs are one of the many items that can be utilized in the fight. After they are thrown, a Pokemon would emerge from the ball and perform its moves.

The list includes:

  • Staryu using Swift
  • Clefairy with Metronome
  • Mew with Fly
  • Magikarp with Splash
  • Ho-oh with Sacred Fire
  • Porygon with Tackle
spoiler

Um, actually … Magikarp is not a Pokemon that can appear from a Pokeball (as of Smash Ultimate). It is Goldeen which appears and uses splash.