I want to know if this mission is even possible AT ALL at the highest platforming difficulty. The lava rises and you die in half a second. There is hardly time to even activate storm dash and hope you get somewhere, which you wont.
If it is not possible, then what is the point? Max difficulty should not mean impossible, just very very hard.
The only way it seems possible to me is with a high mana character with high regeneration and teleport, and even then, its just luck, you have to hope you find places where you can see the next room above, and there is no time to avoid enemies or think about where you are going so they will probably kill you even on featherweight when you accidentally teleport into them, since all your upgrades are mana so that you can keep moving.