Loving this game. It's very addictive and a great challenge.... Even though you get better and better as you go along one stupid mistake can kill you. Especially on bosses. You really have to focus which is great. My only downsides are I wish there was more enemy variety and I wish one of you didn't have to finish the mission solo first if you want to coop with a friend. That's annoying because it would have been so good being able to do mission after mission with a friend. Why not just up the difficulty if you coop and allow that instead of forcing one of you to solo the mission first.