Whew, this got pretty difficult toward the end! I’ll admit I was a little confused at first, when there wasn’t any active threat - if I were to offer one piece of criticism, it would be that the tutorial section went on for maybe a little too long. That’s a minor issue, though. I had a good time with this, and enjoyed the challenge of the last few levels (they started to feel a little repetitive by the end, but were still fun to play). Nice work!