Ride elevator up to palace was a mission in Jak II. After turning on the old B-Zone Power Grid by turning on the five power switches in the previous mission, Jak was finally able to get up on one of the support towers. From here he made his way to Haven Palace.
The PlayStation 3 and Vita versions of this mission are related to a trophy named "Skip the Stairs", completing this mission will reward you with a bronze trophy.
A no-enemy mission with a more or less straight path forwards. Falling down from this height means instant death so take care at the edges and any jumps. First a set of spinning electric blades, easily avoided. Followed by an electrically wired floor, take the path on the left side of the cable. After this another floor and this time you go on the right side.
Next is a sentry gun, much like the ones in the Haven sewers except red. Not much place to move although you can shoot it down easily with the Blaster or time your jumps to get close. Now there's a set of turning blocks with sides that alternate between safe and spikes. Right after this is another sentry gun as well.
Another spinning electric blade machine and no panels on the top of the cable, so go right and past it. Take care to watch the dropping platforms. Another spinning spiked block after this from which you have to jump down onto the right side of the cable (as the top panels are dangerous again). The last obstacle is a large rotating ring at the very end of the cable with two turrets welded onto it which continually fire and are indestructible as well.
Time your jumps and jump over the repeated row of bullets, once behind it is powers down automatically. Climb the platforms to immediately head into the next mission; Defeat Baron at palace.