Like its name implies, the propeller is a device with a three-bladed helicopter rotor on a pole, with each blade having a sharp plating on the outer edge. On the bottom it has a triangular recess which is attached to a lower pole on the ground.
In Sonic Heroes, the propeller is found exclusively in Egg Fleet. In gameplay, the propeller lets the player travel to otherwise unreachable locations. When capable of rotating, the playable character can grab onto the propeller and let it carry them automatically through the air like a hang glider, though the player cannot control where it goes while riding it. Once at the destination, the playable character will release it.
To use it in gameplay, the player has to use the Speed Type character's Tornado Jump (or Homing Attack or Rocket Accel should the player have collected three blue Power Cores) on the propeller to make its blades rotate and allowing the player to ride it. While riding it, the player can move up and down within a certain area to avoid obstacles or collect Rings and Floating Item Boxes during the flight.
- It is possible to make other characters beside the Speed Type hang onto the Propeller by changing the team formation before touching the Propeller.