Wow, this game was very original, really. I love how you have approached ghosts + guiding light, amazing.
The levels feel a bit disconnected, sometimes it feels like you've been pushed out of the map and now you are somewhere else but I think you were teleported to the new level? Not sure about that, that was a bit confusing.
Perhaps a larger map with savepoints would have felt better? Maybe that's what there were?
Apart from that, the game is very nice, love the approach!