Every time you finish a level you are put in a new location with a new gun, and you must survive as many levels as you can. Every five levels you must face more enemies. Demo Features • Two player (Local Co-op) • Ten locations • Ten guns (including cross bows, rocket launchers, and mini guns) Extra Full Game Features • Custom Rules Mode • Zombie Mode Full Game Link https://play.google.com/store/apps/details?id=com.grantsgames.GunUpgrade More Details Offline: Yes Input Methods: touchscreen, k