Jetboard
The Jetboard (JET-Board) is an unlockable vehicle in Jak II: Renegade and Jak 3.
Extended Frontflip
The extended frontflip consists of doing an up or down trick then cancelling it into a frontflip. This technique was originally used to achieve long distance jumps before the discovery of the hover glitch. Extended frontflips are still used in various segments of Jak II and Jak 3 speedruns.
Hover Glitch
The hover glitch was discovered by Unreal704 on November 15, 2014, and is regarded as one of the most important discoveries in Jak speedrunning. It consists of cancelling a side trick with a up or down trick, then cancelling the up or down trick into another up or down trick as many times as desired to reach unlimited heights.
Tutorial
Discovery