I'm so close! I'm at the end of the second set of small blue floating platforms racing ahead of the expanding sun. I jump across all of the small platforms and get to the larger final platform where there is a locked door. How do you unlock the door? I saw in a youtube walk through that the door is open when you get to it. I went back in the game looking for a trigger to open the door but no luck. Fantasic mod, I just need to see the end.