Ashura Senku

The Ashura Senku (阿修羅閃空, Ashura Senkuu, "Asura Flashing Void") is a special attack used by Akuma and Evil Ryu, introduced to Akuma in Super Street Fighter II Turbo.

Description
Executed by performing either a "Shoryuken" (forward, down, then down-forward) or "Reverse Shoryuken" (backward, down, then down-backward) motion and then pressing either all three punches or all three kicks, Akuma widens his stance, glows red, then lifts one knee and "glides" along the ground to another location with his eyes aglow. He cannot be hit while gliding, essentially making the move a teleport. The distance and direction glided depends on whether the player uses the forward or backward motions and presses the three punches or the three kicks, as seen above.

The teleport can be used to get away from an opponent bearing down on him, to suddenly launch an attack (often from behind), or perhaps to simply psych out the opponent and keep them guessing. Its use also serves to help fill the Super Combo Gauge faster.

Akuma's most famous attack, Shun Goku Satsu, begins with an Ashura Senku. In X-Men: Children of the Atom, this is his X-Ability.