This is a fun little dungeon physics navigator. I definitely found the wall collision a little unforgiving.
I wasn't really sure what the limitation associated with it was, but it was still fun navigating that space and getting an understanding of what the physics drift and my acceleration would be.
I wish I could slow down more quickly with a back button or by using "down," rather than having to rotate around, especially since the rotation was some what slow.
nice submission!