Sparklingly polished entry! Feels and looks really good when you line them up and they all light up yellow. And blowing things up is fun too.
But I'll join the other commenters in saying that not knowing which end of a symmetrical piece is correct dampens the enjoyment. The fun of puzzle-solving comes from applying creativity and understanding of mechanics, but the trial-and-error parts feel like you're just brute-forcing until you get the right answer. There are probably some other ways to limit the player and create frustrations that cause that "a-ha!" euphoria when broken through.