Great take on the theme and very well handled. I asked my wife for help and together we were able to get to level 14 and not far. How many levels are there!? :) Great job done!
Oh wow, that is farther than I thought anyone would reach to be honest, great job guys! Glad you found it enjoyable with someone :D
As of now the game can actually last for about 40 rounds, it would be simple enough to make it playable past that number but I wouldn't be able to scale the difficulty more after that point the way it's scaled now.