Hey ! Thanks for your feedback, we are glad to ear that you enjoyed our game !
Just to answer some of your interrogations, the crystal puzzle was meant to be a kind of sandbox puzzle, there is obviously an intended way but we haven’t restricted other ways so that the player can find it’s own way if he wish ! We are aware of some issues with the boss and the final room and these issues are actively being worked on, most of them are not hardware related but only stuff that did not work as intended.