Great puzzle game. The introduction levels were good, it was easy to understand what each puzzle element does. chapter 3 level 8 was getting pretty tricky, but then level 9 was mostly confusing, because I only needed that one antibomb to solve it. The final chapter was pretty obvious again, and for some reason, when I pressed exit, the game crashed.
There were so many mechanics, and it was so polished, unbelievable that it was made in just 4 days. I had a lot of fun,