Theme for ryancompo 3: it came to me in a dream

Nightmare sections can be unexpected and just appear and disappear without a clue. At one point, it feels like you're wandering through heaven, then suddenly it happened, as if you somehow tripped into a bottomless pit of horrors.

My dream: I was just walking through a big city with lot's of cool people around. Then on one turn, everything became a hallway full of endless doors, making me go through 5 minutes of painful searching until I return to the city I adore...