Sonic Riders: Zero Gravity

The fan-favorite Sonic Riders series returns in Sonic Riders: Zero Gravity with a whole new form of chaotic racing by manipulating gravity itself! These gravity-altering powers can transform walls into tracks, or create a "black hole" that sucks you through for the ultimate speed boost, and allows for an entirely new way to gain a leg up on your competitors. From illuminated highways in a bustling metropolis to the outer reaches of space, you will race at the speed of light on 16 dynamic courses. It is the fifth racing game in the Sonic the Hedgehog racing series, following Sonic Drift, Sonic Drift 2, Sonic R and its predecessor, Sonic Riders.

Purple Afterglow
If Gravity Dive or Gravity Control is used, a purple afterglow remains visible until it either gets replaced by a new one or if the map or cutscene unloads.