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
Lightweight: less than 20MB
Input Methods: touchscreen, keyboard+mouse, & gamepad
Players: 1-2 local co-op
Export/Import Save: Yes
Save Files: 1 (full version has 4)
Install on External Storage: Optional
Multi-Window Support: Yes
Categories: top-down shooter
Themes: 2d, war, survival