Quick Spin Knuckle

The Quick Spin Knuckle, also known as the Axle Spin Knuckle, is one of Cammy's special attacks in the Street Fighter series. The move is also part of Juli's arsenal in Street Fighter Alpha 3.

Description
Executed by performing a half-circle back (or, in X-Men vs. Street Fighter and Marvel vs. Capcom 2, quarter-circle forward) motion and pressing punch, the user approaches her opponent by hopping into the air and spinning her back around to the opponent before whipping her fist a full 360°. If she connects with this move up close, she can hit twice - first with her elbow, and next with her fist. While performing this move, the user is invulnerable to attacks, save for ones that connect with her head; however, it typically has a lengthy startup time.