I'm in the planning / brainstorming phase for a fangame I'm making about a game otaku hikkikomori. I'm trying to combine elements of Yume Nikki (atmosphere, puzzles) with LSD (randomness, 'linking' from one dream realm to another.

Since the main character has shut herself away from everyone and everything, I've decided to make the dream realms based around:
-Items in her room (computer, alarm clock, etc.)
-Her feelings (loneliness, etc.)

The dream realms consist of two parts: the 'heart' of the realm which acts like areas in Yume Nikki, and the 'wastes' which act like LSD (randomly generated).

If anyone has any suggestions for game mechanics or dream areas that could be cool, I'd love to hear them.

Pic related: the main character has weight issues.