I like this idea a lot, i think it has potential to be a very dynamic game if you were to implement a sort of "the upside down" to the inverted side. Good and Evil, Light and Dark, etc. This is fun to play!
This is a platformer game where the level can be turned inside-out. There are three levels. Play as a small squishy purple blob, because I spent like two hours trying to make a decent character before deciding I didn't want a decent character anyway.
Created for Weekly Game Jam 77, the theme being "Inside Out".
Controls: Left and right arrows (or A and D), Space to jump, Up (or W) to flip level
And, to anyone that reads this, Happy New Year!