GP Gauge

The GP Gauge is a gauge that appears in Sonic Riders: Zero Gravity.

Overview
The GP Gauge is a cyan-colored gauge that measures the number of GP points the player has. Like the Air Tanks, the GP Gauge can be depleted if not constantly refueled by Gravity Points. Likewise, the player will have to run on foot if they completely rung out of Gravity Points until they regain some. The GP Gauge can be refilled by various means, such as performing tricks, obtaining GP Gauge Up power ups from item boxes, or performing special skills (such as grinding).