you can jump off the edges and anti-grav and get close enough to most out of the way places in the zone without having to actually go to every platform. Also note, that its best to try for the 100% AFTER you have completed the game once. Leave your character at the "boss" platform, and reset the timeline. You need to navigate the zone a second time in order to complete the Bestiary anyway, so taking this time to run around saves a lot of time and headache. You will eventually unlock the zone and still be standing at the boss area. If you try and get the 100% Map in the original timeline you are liable to have to navigate the zone a 3rd time just to get back to the boss platform so you can complete other achievements.