Hmm, I noticed that after getting all the coins, it doesn't say cleaned out and at the end it adds a few seconds to the final score. Maybe you have a floor that is unreachable that has coins in it.

I want to see more. The escape was painful. The coins on the outside at start are quite annoying. Maybe its better to just have them on the inside. The severe punishment of mistakes I guess that's intentional. Overall though the rest was really cool. It was very exciting. Maybe I'll try playing it again without dying. Make more please.