This is a trial version they released a couple of weeks ago. A lot of people got it off of their device's app store. Some people like me had to get an apk file and install it directly. This is where I got mine: http://play.mob.org/game/transformers_battle_tactics.html
Game's up! https://play.google.com/store/apps/details?id=com.dena.west.TransformersBattleTactics I deleted play store data and all region drm issues are gone.