I really like the concept of this game! It felt very satisfying to kill the virus with the loops. My only issue with the game something that was already mentioned. Without the help of the example knots I couldn't make knots consistently. In the end I had to just make a big circle and then keep making small circles until I hit the number of knots I needed. But it's a really cool idea and the art style is really nice! Keep up the good work!