Play any type of Game at Y8.com. The biggest Game Collection to play free online. Flash, Unity 3D, Html5, Android, Java and Shockwave.
If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Shoot all the incoming enemies from your gun tower. Upgrade weapons and defenses to stay safe.
Use mouse to aim and shoot.
Space bar to reload.
G to throw grenade.
1-6 to switch guns.