In gameplay, Chopper Chomps can only be obtained at random from Item Boxes by Big the Cat. As with all other Items, Metal Sonic can also use the Chopper Chomp if he uses the Steal Item to steal it from the aforementioned user.
When used, the player sends a water orb with a Chopper circling around it rushing down the lane the user was on when this power-up was first deployed. Should the Chopper Chomp make contact with a playable character, it will damage them. Being capable of passing through obstacles, the Chopper Chomp will continue its path until it either hits an opponent or disappears on its own. To avoid the Chopper Chomp, the player must either jump over it or step to the side. Players also have a chance to find two Chopper Chomps in an Item Box instead of one if their level is at least 6, and three Chopper Chomps at level 12.