>Form a portal in front of one of the spikes. If it passes through normally, move through the room from platform to platform, using portals to block the spikes. If it moves around the portal, form a spherical portal around ourself, making sure there are no openings for spikes to slip through, then proceed from platform to platform, moving it along with us as a barrier. Make sure to make an opening in the bottom whenever we land on a platform, as we don't want those falling through to Makai; we kind of need them to stay here.