It fits the theme very well with the two playable characters.
The duo mechanic is very unique if not slightly unintuitive.
The puzzles make good use of the duo mechanic.
The art is beautiful, it's unfortunate there's no sound.
I could not figure out, how to open the door in the room with all the bats, i attacked the key in the previous room.
It's pretty easy to glitch one of the characters out, outside the map.
Great job!