In gameplay, Steal can only be obtained at random from Item Boxes by Metal Sonic. When used, a Dark Chaos Chao will be summoned and then disappear for a second. During this time, the Chao will target a random opponent and steal one of the Trap or Projectile Items they currently have and bestow it to Metal Sonic. This cannot be avoided even if the opponent has the Shield or Invincibility active.
The affected opponent will have pink smoke covering up the stolen Item in question before being removed. Upon receiving the stolen Item, Metal Sonic can use the stolen Item as if it were his own. However, the stolen Item's effects will depend on the level of Steal Metal Sonic has. Steal can be upgraded for each individual user by leveling them to levels 6 and 12.