Very enjoyable great looking game.
I appreciate the step by step tutorial / basic levels. I think you did a really good job on showing the mechanics before letting the player go wild :)
The art style is great, I like the SFX a lot. A spooky dungeon song could've complimented this even more but I guess you ran out of time. My game doesn't even have sounds, so I'm really happy with what is here.
One suggestion is to change the game to a grid based movement game, take a look at how Porklike does the movement in a grid-based game. I'm saying this because I died to the spikes quite a bit by being slightly on that tile. The focus of the game is on puzzling so I think it would make sense.
Really great entry though, it has a a lot of great elements and was really enjoyable to play through!