I'm impressed that you made an entire 3d game for a 48 hour jam! On that alone, congrats and great job! I like your light mechanic and your puzzles are fun. Like a few others said, the controls could use a little work (just being able to move diagonally would be a great first step). My only other complaint is that I would sometimes shove the mirrors into areas I could not back them out of, forcing me to reset. Either modifying your levels (wouldn't recommend) or allowing the player to grab and pull mirrors would fix this. Again, great job!