The up aerial (abbreviated as "uair", "UAir", "u-air" or "AUA") is an aerial attack that is performed in midair by pressing the A Button, and tilting the control stick upwards. It also gains a moderate boost in height if the character's attack is a backflip used just before the apex of the jump but the user loses their second jump. Its official term varies between titles, where it is known as a "Up Midair Attack" in Super Smash Bros. Melee, and a "Up Air Attack" in Brawl.

Notable characters' up aerials

  • Bowser's up aerial, although it begins slow, possesses extreme power, and can be used to combo fast-fallers and knock-out opponents at low Damage Percentages.
  • Captain Falcon's up aerial, arguably one of his best combo moves in the series which allows Falcon to combo or even set up other combos.
  • Fox's up aerial, a flip kick with immense upward knockback and high speed.
  • Ganondorf's up aerial, one of his most useful and fastest moves and when used backwards, allows him to knock-out his opponents at low Damage Percentages due to the semi-spike.
  • Link and Young Link's up aerial, which can result in a very effective knockback at considerable speed, with excellent priority and range.
  • Mr. Game & Watch's up aerial pushes opponents who are above reach of the hitbox even higher into the air.