This game had some amazing puzzle design! (My favorites are level 8 and 12) The solution was (almost) never the most obvious one, which made for some great eureka moments. I would imagine it to be pretty hard to be able to introduce all the different enemies but you where able to it so smoothly! My only complaint is that I wish I could go to the next level with a keyboard button so that I don't need to move my hand to the mouse every time. Great job!