Puzzles for the Rectangular Prism

It's starting to feel like a game!

The latest prototype for the optics game now has the proper flow from level to level. I also added a little message after you complete each puzzle.

I also wanted to explore the mechanics of the rectangular prism further so I've introduced three more levels to that effect.

By the way, 'the Skull' seems to be the puzzle most people get stuck on. Let me know how you fare.