Hienkyaku

"Dash button while jumping. May be executed in the air."

- In-game text

Hienkyaku (飛燕脚), also known as "Flying Swallow Feet", is the special technique that Zero learns after defeating Jet Stingray in Mega Man X4. It allows Zero to air dash 

Trivia

 * In Tatsunoko vs. Capcom and Marvel vs. Capcom 3, it appears that the move can also be used to dash in any other direction other than straight forward.
 * This ability is reused in Mega Man X5 (although it is eventually replaced by the F-Splasher) and X6.

Similar Techniques

 * F-Splasher from Mega Man X5

Counterpart to this Technique

 * Ground Hunter