As its name implies, the Star takes the appearance of a floating, five-pointed golden star. It also gives off a faint glow.
Stars can be found in various places inside the normal Acts of Sonic Rivals where they can be picked up upon touch. Once obtained, the characters are granted one use of their personal Signature Move. The effects are the same regardless of the user's current position in the race. These include:
- Sonic the Hedgehog: Sonic Boom
- Shadow the Hedgehog: Chaos Control
- Silver the Hedgehog: ESP
- Knuckles the Echidna: Hammer Punch
- Metal Sonic: Copycat
To utilize a Star in gameplay, the player has to press .
- Alongside with the Magnet Power-Up, the Star is the only Power-Up which both of its offensive and defensive uses are identical.