An interesting game xD I certainly liked where you were going with this game. I can tell you ended up a little short on time, with the level being mostly dev textures and the fact you can just walk around the side of the castle and see the floating shapes, as well as from a hole in the wall when you walk through the game on your left. I did spend like 5 mins trying to jump into that gap as it looked like I could reach it, only to find I couldn't. There was some great 2D & UI art in this, though the options menu kinda took me out of it with the visuble button over the art that I could clearly see. The art style is cool though I liked where it was going. Gameplay wise it is nice and simple to follow, though having to repeat huge sections at the speed the player moves did make we want to quit, so you may want to work on some checkpoints to avoid such a frustration.
All that being said this is a solid entry for a solo participant. well done!