Aww, server down just as we almost finished wave 20. Bummer.
Fun, but i wish levels would allow to make more impact. The 24 level guy was barely scratching the surface on an overrun map. Would love to have an oportunity to upgrade the skills and have a bigger energy pool. Right now its barely a minute before you max out on energy and can only push two buttons before getting distracted for 10 minutes again.