Oh, wow, what a crazy and unintended bug! Thanks for telling me, I'll patch that right up. It's definitely not intended, though it is an interesting idea, especially being able to pick up the UI. Maybe an idea for another game... In this case, it was an unfortunate bug -- during dev I had a way of toggling the 3 levels of crystals, and after 3 it would wrap around to 0, which is probably what happened to you. Oops. Thanks for telling me.
I'm so glad you enjoyed the full game! It was satisfying to make, and even more satisfying to know players enjoyed it and were able to figure it all out. Thanks for playing and thanks for bug squashing!