The Mid-Air Trick Action (トリックアクション,Torikku Akushon?, lit. "Trick Action") is a recurring move in the Sonic the Hedgehog series. It refers to different mid-air maneuvers which enables the character to control their movements.
When performing a Mid-Air Trick Action, the users perform a certain acrobatic move when thrown into mid-air to alter their flight path. Depending on the choice of trick, the users can trust themselves in a certain direction. Each Mid-Air Trick Action is performed in accordance to the user's own unique style.
In gameplay, the Mid-Air Trick Actions allow the playable characters to suddenly move in one of the four cardinal directions after being launched into the air by a gimmick, like the Spring or Ramp, with a brief and short-ranged dash. Unlike Trick Actions, however, the Mid-Air Trick Actions can only change the user's movements, and do not grant points or charge the Boost Gauge. Each character's actions are different in appearance and may exhibit unique traits; some may double as an attack, some are simply an extra jump, and others may create an effect after the user touches the ground. Each Mid-Air Trick Action falls under one of the following maneuvers in accordance to the direction they move the user in:
Big Air: Thrusts the user upward. Most of these tricks have no offensive traits.
Long Wind Jump: Thrusts the user left/right. Most of these tricks double as an attack.
Stop 'n' Slam: Thrusts the user downward. Most of these tricks double as an attack.
Quick Reverse: Thrusts the user backward. Most of these tricks have no offensive traits.
In practice, the Mid-Air Trick Actions are very useful when the player wants to manipulate the playable characters' trajectory when they are sent flying through midair or gain access to some previously inaccessible areas.
Sonic Advance 2
In Sonic Advance 2, the Mid-Air Trick Actions are usable to all of the characters, excluding Super Sonic. In this game, all four types of Mid-Air Trick Action maneuvers are usable. To use a Mid-Air Trick Action in gameplay, the player must press in a direction on (this is excluded for the Quick Reverse maneuvers) and the R Button at the same time after being thrown into the air by gimmicks.
Sonic Advance 3
In Sonic Advance 3, all of the characters, except Knuckles the Echidna, can use the Mid-Air Trick Actions after being placed in certain pairs. These include the pairs of Sonic and Tails, and the pairs of Amy and Cream. In this game, only the Big Air, Long Wind Jump and Stop 'n' Slam maneuvers are usable to the player. To use a Mid-Air Trick Action in gameplay, the player must press in a direction on and the R Button at the same time after being thrown into the air by gimmicks. Just pressing the R Button triggers the Long Wind Jump maneuver.
In Sonic Advance 3, although Knuckles is still incapable of using the Mid-Air Trick Actions, the player can hear Knuckles making sounds as if he was capable of using them in the Sound Test. This suggests that while there is game data for him to use the Mid-Air Trick Actions, the idea was scrapped in the final vrsion of the game.