The Joudan Sokutogeri (上段足刀蹴り Jōdan Sokutō Geri?, "High-Level Foot Edge Kick"), casually referred to as the Donkey/Mule Kick, is one of Ryu's special attacks, introduced in the Street Fighter III series.
|Street Fighter III series|
Street Fighter X Tekken
|Tatsunoko vs. Capcom|
Marvel vs. Capcom 3 (Ultimate)
|Marvel vs. Capcom: Infinite|
Street Fighter V: Arcade Edition
The attack is a simple, yet strong, forward-stepping side kick. If it hits, the opponent is sent flying. The forward step range and power are determined by the kick button pressed: light kick version has Ryu flip his legs and kick the opponent for light damage; heavy kick version has him step forward and kick the foe (seen below) for high damage; and the medium kick version is somewhere in between.
The EX Special version introduced in the Street Fighter III series bounces the opponent off the wall, which allows Ryu to juggle them afterwards. In Tatsunoko vs. Capcom, both versions of Marvel vs. Capcom 3, and Street Fighter V: Arcade Edition all versions of the move have this effect.
Though Ryu does not have this attack in Street Fighter IV, Gouken's Focus Attack takes the form of the Joudan Sokutogeri except without the step forward (he simply performs the kick from a standing position).
In Street Fighter V, Akuma's throw, the Shuretsuzan, involves the Joudan Sokutogeri.
In Super Smash Bros. for Nintendo 3DS and Wii U, this is performed as Ryu's forward smash attack.
The attack is rather slow and relatively easy to block or parry; thus, it is not used often. It still has some use as a combo finisher, and the move also has combo-extending abilities in its recent appearances. The EX Special version can create a perfect setup for a Super Art, and all versions can work to apply pressure via frame-trap or as early knockdown tools.