This level is really divided into three sections between the top and the bottom of the level. The first "rectangle" has one zap drone patrolling, the next has two, and the top section has three. Use jumping to get from oneway platform to the next carefully. Get to the top, and get all the gold on the left, then flip the switch, and get the rest of the gold. Get down safely, and flip the switch next to the exit. This opens another little niche at the top, where you'll activate the terminal. Get back down, and to the exit, and you've won.