One of the best things about high-powered mobile devices is the ability to play games on the go (or while seated) and to be honest there are few things more fun in gaming that killing zombies. Well luckily the team from Madfinger Games has been hard at work following up on the original Dead Trigger, with Dead Trigger 2 which launches today, in free-to-play format for both iOS and Android devices, as well as on Steam, Mac and Facebook.