If the point was just being scary, I guess this is acceptable, but as a game I found it disappointing.
First of all, it seems like a luck-based game. The keys seemed to play absolutely no role in the game and I couldn't find any clues of what (not) to do. I seriously hope it's just me being dumb and not able to identify a pattern.
I also should say I understand the need for camouflaged holes, but sometimes they seemed so random they transformed a game that should be about keeping calm and being able to figure a way out into a game for feeling annoyed.
At last, the youtube video in the game description is not the least helpful. It doesn't explain how keys work neither gives us a hint of how many floors are there.
And what the hell is happening to newgrounds? The review sections are clustered with garbage.