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. Many attacks can be interrupted before the attack animation ends. One such attack that particularly exemplifies the concept is Marth's down tilt, which can be interrupted during the vast period of time during which Marth is retracting his blade.

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