Palisade Guardian 3
Destroy all aliens with 6 epic weapons in 9 awesome stages! Winning a level will award you with stars; spend your stars in the Tech Tree to upgrade your weapons. Playing levels will also award you with coins. Use coins to buy Power-Ups for an extra advantage on the battlefield! All levels re-balanced! New Double Damage power-up! Reward menus show you when you've unlocked something cool. You can now buy non-pro power-ups without logging in!
Click to shoot.
Spacebar to aim down your gun sight.
Power-Ups: Buy Power-Ups before you start a round, and then click the Power-Up icon in the top left of your screen. Select a target for your Power-Up if prompted.