Air Combo Plus is an ability available to Sora in Kingdom Hearts II.
It increases the maximum amount of attacks in the air by 1, and allows such attacks as Aerial Spiral and Horizontal Slash to be executed in succession.
Leveling Master Form to levels 4 and 6 will add Air Combo Plus to Sora's abilities. The Star Seeker keyblade also has Air Combo Plus as the default ability. Sora has two additional Combo Plus and Air Combo Plus abilities in the Pride Lands.
Air Combo Plus costs 1 AP to equip.