I just played the game!
This was fun, clever puzzle game. I morbidly enjoyed torturing the poor cute little soul. The controls were intuitive once I made it through a couple rooms, but I think you had enough space to work them into the UI on either the far right or left side of the screen. It would be a handy reminder to right click to remove and things like that when you're in the early game.
I liked the zoom in after solving a puzzle. Nice touch. I do wish there was a button to increase the speed, so you could watch your setup playout quicker to determine where you misplaced spikes and try again instead of waiting it out.
I did encounter one bug. I think it was a collision issue. I hit this spike and the character was just stuck:
Overall, I had a fun time with this. Great work!