The Ultimate Meter is a simple, slightly curved energy bar that appears behind the rear of the playable characters' racecars during a race. The meter itself is gray, while its energy bar is white.
In the gameplay of Team Sonic Racing, the Ultimate Meter is a mechanic available to all racing characters in the game. When starting a race, each character's Ultimate Meter will be empty. When a character's Ultimate Meter is full however, their character icon on the HUD will turn from blue to yellow.
By pressing // while the Ultimate Meter is full, the player can initiate the Team Ultimate, which grants their playable character an unstoppable speed boost. In addition, the Team Ultimate can also be pulled off by AI-controlled characters in a race. While using the Team Ultimate however, the Ultimate Meter will slowly decrease; once it empties, the Team Ultimate ends.
In order to fill up the Ultimate Meter, the player has to execute the following team actions:
Also worth noting is that whenever one of the player's two teammates, whom the player will be racing alongside with during each race, performs a Ultimate Meter-charging team action, the player's Ultimate Meter will be filled up as well and vice versa.