When performing the Shuriken, Espio pulls out a three-foot large, four-pointed shuriken star and throws it away like a Frisbee which can damage enemies, break wood Containers and open Item Boxes. This move only deals one hit worth of damage to enemies and has to be used multiple times to damage foes like Egg Pawns with rock shields and Metal Madness. However, it cannot damage heavily-armored foes like the Cameron or silver-clad Flappers.
The Shuriken can be thrown over a long range, though it will disappear in a blue flash (except on the PC version) once it reaches its limit or when hitting Egg Pawns with shields. If used in close spaces, the shuriken star will ricochet off the walls repeatedly, allowing more strikes until it disappears. The Shuriken can even be used when Espio has turned invisible from using Leaf Swirl. Using the Shuriken successfully also slightly fills up the Team Blast Gauge.
To perform the Shuriken in gameplay, Team Chaotix must be in Speed Formation with Espio as the leader. The player then has to hold down the action button (//) and release it without any teammates nearby to launch the Shuriken. However, the thrown shuriken star does not home onto enemies automatically, so the player has to aim manually. An easier way to perform this move is by using while Leaf Swirl is active as no teammates will be following during this move.
↑Kaizen Media Group (1 June 2004). "Training". Sonic Heroes: Prima's Official Strategy Guide. Prima Games. p. 106. ISBN 978-0761544494. "The Leaf Swirl is performed by jumping up and pressing the attack button. While invisible, Espio can throw Shurikens."