Interruptibility

Interruptable As Soon As Frames, abbreviated "IASA frames," are the period of time at which you can first interrupt an attack with another motion. This period of time is often distinct from the amount of time it takes for the attack animation to finish. One attack that particularly exemplifies the concept is Marth's down tilt, which can be interrupted during the vast period of time Marth is retracting his blade.

Peach can use IASA frames to perform the Vidjo-cancel and Vidjo-drop.