It is possible to bypass doing the Bottom Level 1 Magitek field when doing the northern/top boss by going through the Level 2 Magitek field then returning and opening the Level 3 Magitek field once you have 4 Photocells, this seems unintended, and I will admit I did this a few times until I realized what I was doing, but many people seem to do it and I can't believe it was intended as a shortcut.