It's actually amazing that you managed to create a fully functional 3d game during 48 hours. I would point out just some minor problems though. The interectable parts of the environment blend in with the rest of the scenery quite easily, so it can be quite hard to find them and the text in tutorial was also quite hard to read due to the white background. The jump feels quite floaty so some of the platforming sections can be quite tricky. Some enemy counter would also be useful, so the player doesn't miss any of them by accident.
On the positive side, really nice concept, the level design is also quite interesting and I liked the interaction with the world.