The Shippu Jinraikyaku (疾風迅雷脚, Hurricane Thunderclap Leg) is one of Ken's Super Combos in the Street Fighter Alpha series and his third Super Art in the Street Fighter III series. It also appears as his Super Art in Street Fighter X Tekken.
Street Fighter Alpha and Street Fighter III series
Street Fighter X Tekken
Ken moves forward and delivers a low roundhouse kick, two high ones, and another low one, and follows up with a knee hit. He then launches into a vertical Tatsumaki Senpukyaku if his knee hit succeeds. In Capcom vs. SNK and SNK vs. Capcom: SVC Chaos, Ken attempts to perform one low and one high kick, then performs a high-out kick and an Inzuma kick, then hits with his knee then changes to his other knee and performs the Tatsumaki.
In Street Fighter X Tekken, the kicks take on electrical effects, a reference to the move's Japanese name.
The Street Fighter III version has the advantage of being able to follow up a first attempt immediately with another one. If the opponent blocks and attempts to punish the first one, they may find themselves on the receiving end of the second; this maintains a level of deterrent and makes the attack safer to use than it would otherwise be, as the opponent will be afraid to attempt to counterattack.