Chaos Screw is a move used by Chaos in Sonic Adventure 2 and Sonic Adventure 2: Battle. When using this technique, Chaos jumps and delivers a spinning punch. It is the equivalent to Knuckles's Spiral Upper and Rouge 's Screw Kick.
When using the Chaos Screw, Chaos jumps directly into the air (albeit slowly) while spinning around. He will then stretch out and enlarge his fists while unleashing a series of powerful punches which will damage any enemy above him.
Chaos Screw can only be performed by playing as Chaos in the games' two-player mode. To use it in gameplay, the player must rotate the control stick in a 360-degree angle and press the action button.