Good job on the theme and the limitation. I liked the idea of having a puzzle and seeing how I can do it to infect everyone. I didn't like that sometimes you have to be super fast changing the blocks or otherwise you lose. Changing it so you have a 'preparation' phase first, where you put the blocks where you think will be good and then an 'action' phase where everyone will start moving could make it better and not frustrating in some levels. Good job overall!