Charge Boots are an optional gadget in Going Commando, Up Your Arsenal, Deadlocked and Tools of Destruction. They produce kinetic energy that propels Ratchet forward at a high speeds for a short amount of time before slowing , and allow the player to move through levels faster. Different Charge Boots have been manufactured by Megacorp, Gadgetron, Vox Industries and Grummel Net Industries, with slightly different appearances in the design of the boots and the color of the trail they leave behind.
Ratchet won the Megacorp Charge Boots from the first "Amateur Circuit" race on Joba in the Megacorp Hoverbike Race. Biker Two gave them reluctantly after Ratchet won, as he wanted the boots himself. These Charge Boots emitted a blue kinetic trail.
Up Your Arsenal
Ratchet later found different DreadZone Charge Boots. These differed in that they emitted a yellow kinetic trail and are more compact and tight-fitting. Functionally, they also did not give a prolonged burst of speed, providing instead a short and powerful one.
Tools of Destruction
Ratchet found the GrummelNet Charge Boots on planet Mukow. Unlike previous Charge Boots, they were blue in design, and easier to steer and control. They gave the same short burst of energy as in Deadlocked, but feature a break.
In Going Commando and Up Your Arsenal, the player must quickly press twice to propel Ratchet forward in the direction he was facing, and holding will allow them to continue moving at a slower speed, with the ability to steer.
In Deadlocked and Tools of Destruction, they instead provided a small, powerful burst of speed, rather than a prolonged one.
Behind the scenes
The Charge Boots were added late to Going Commando. For Tabora and Grelbin, Insomniac wished to give the player a mechanism to quickly move around the area, which was originally going to be a small floating car (iterations of which are found in the Insomniac Museum). The Charge Boots rendered this redundant.