|N version||1.3 and later|
Method 1 (Easy)
Exit the area you're in, jump up the left wall, and get the first door switch. Then head over to the region with a couple of circles patrolled by a couple of zap drones, and carefully collect both door switches there.
Climb up the circles to the area containing the exit switch guarded by a floorguard. Lure the floorguard across left, jump over it (collecting the gold), then lure it back to the right side. Follow it over to the right, jump to get the exit switch, then lure it back and forth a couple more times to exit the area. Optionally collect the gold at the top layer.
After you are done, drop down and run to the exit.