Super nice game with interesting mechanics that you can probably create endless of puzzles with in the future! I was a little confused why the cube didnt activate the switch sometimes, but I saw something about spinning them so after pressing R for a bit I solved it (I'm still not 100% sure what R did), but that part was a little confusing. I also think it was a little hard to see the cube inside the glass right in the beginning of the level, but other than that I think it was a very nice game with nice graphics, movement and gameplay! I would definitely play a full game like portal but with maybe a more platformy twist like yours.