|N version||1.3 and later|
Jump to the right, where the first four gold are. Then jump back to the first block on the left slope. Jump from one block to the next quickly, to avoid being killed by the gauss turret. After you get the switch on the left side, jump from there to the lower bounceblock. Jump off the lower bounceblock onto the bounceblock with the doorswitch. Then, jump to the left bounceblock and walljump to get on top of it. Jump to the upper platform and run into the door.