This is such an awesome game, I can't believe this was made in only the 48 hours! I don't even know what to say as feedback. The difficulty curve was excellent, everything was an A-level of creepy, the boomerang was satisfying and easy to use, like I don't really know what to say.
I guess the only issue I had with it was the pause to submit the score, since I'm not that interested in keeping track. Maybe just put how well you did with the option to put the score to a scoreboard, but also have a skip button?