If you want to do it the long way, head to the left, and get to the first narrow ledge. Be careful, you can easily tip over. Jump to the next, then keep going until you get to the right ledge. Watch out for the minefield. Walljump to the next level, then cross again. Activate the terminal on your way. The zap drone usually won't be too much of a nuisance. Get to the launchpad, and launch yourself to the top level. Cross the level once more, then flip the switch to the exit room, and exit the level.