Nice, getting the timing right on that last puzzle felt really good.
I liked all the puzzles, the fourth one was my favorite. I had that OF COURSE moment when I figured it out after trying for a bit. Great puzzle game moment when it makes you feel like a genius.
Only bugs I saw was on the fourth one you could actually block the laser with the head of one of the characters without the character getting killed, and I managed to die by jumping on a hint once.
I think it's a good framework for adding puzzles. I guess introducing mechanics like the laser and the turret and then designing puzzles around them would be a good way to come up with more levels?