Reach the end of Mountain Pass was a mission that Jak and Daxter completed to obtain a power cell in The Precursor Legacy. After entering Mountain Pass a group of pedal-copter lurkers appeared, Jak had to race to the end of the pass to stop the Lurkers from blowing it up.
The PlayStation 3 and Vita versions of this mission are related to a trophy named "Zoom Zoom!", completing this mission will reward you with a bronze trophy.
The exact goal is to reach the end of the Pass using the A-Grav Zoomer, but before the pedal-copter lurker scouts do so. The pedal-copter lurkers speed up when you get close enough but slow down if you're farther away, although ultimately they can be taken over if you're skilled enough and make use of the many blue eco vents, jumps and shortcuts. Simultaneously you'll have to avoid the many gaps, bottomless pits and dynamite barrel spreads throughout the pass. The many trees will also be a nuisance while you're speeding through the valley.
If you in one way or another fail to reach the end, the dynamite barrels blow up killing you and destroying the pass, forcing you to retry the mission. If you manage to speed past the pedal-copter lurkers and reach the end, you'll fly through a quicksand lurker (killing it) stationed there as a look-out to blow up the pass. The power cell is then located on top of the trans-pad.