I mentioned it during the Mari Is Home text mess I said before, but I like to think this whole Recycultist Dungeon shows how Headspace could have changed. That maybe if Sunny weren't on the verge of having a mental breakdown, killing himself, or facing the truth; that if the status quo could have somehow kept going for longer, maybe Headspace might have slowly become more like Faraway. That this whole segment is representative of a turning point, just a taste of what could have been in store of Sunny's dreams from now on. Or I'm reading too far into it. Either way, cool segment.
I forget if the Emotion System can be used here outside of making Kel happy by giving him Orange Joe, so I don't remember if this next bit of trivia is exactly unused or not. All the friends can be made to experience different emotions like Happy, Sad, or Angry, and I think even Afraid? But Sunny has one exception. Sunny is incapable of being inflicted with Happy. There isn't even a portrait for it in the game files. This whole sections one of his dream fantasies, and he can't imagine himself feeling happy. How tragic.