It is first seen in the intro cutscene when the mass-produced SCR-GP and their leader, SCR-HD are activated by one of the Arks of the Cosmos. They are next seen when they attack Sonic and friends on their way to Megalo Station. They also chase Sonic's team and the Babylon Rogues through MeteoTech after the teams raise an alarm. After this, the SCR-GP robots are not seen at all, as the rest of both stories center on SCR-HD and Dr. Eggman. Like the rest of the playable characters in Sonic Riders: Zero Gravity, SCR-GP can perform Gravity Dive and Gravity Control.
SCR-GP is a tall security robot that is quadrupled the size of an average human. It has a red eye strip that is spread only halfway of its face, which is used for scanning amongst other things. It also has two round black shoulders with two lights on the sides; blue on the right and red on the left, with the MeteorTech insignia labeled on the front of their shoulders. It also has a buffer on the front waist area, copper feet that look like claws, and it has dog-like legs with fins attached on the sides. It has a strange spine that holds its mechanical parts underneath it.
As a Wheel type Extreme Gear, SCR-GP can crash through obstacles and barricades without slowing down, gaining Gravity Points (GP) for each destroyed obstacle and make Slide Turns to get through sharp corners. However, it cannot perform Gravity Control to the full extend as most other Extreme Gears. It also does not have any Gear Parts.
These robots have a similar ability to roll like Droidekas in the Star Wars series, having a similar body structure to the Droidekas.
SCR-GP is the only character in Sonic Riders: Zero Gravity to have a maximum six in one of their stats (Power).