Hi man congratz on your game. :) The movement of the grim reaper was super smooth... My only suggestion that would make the game a little bit better in my opinion, is to make the levels a bit smaller.. And maybe add some diversity on different parts of the level. Like a candle or something like that, I got lost some times because I didnt remember if I already passed by a specific place.
Please play my game if you have the time and give me your honest feedback :)