Your objective is to shoot the bad guys as accurately as possible. You can aim for the head or the body area. The closer you are to the center of each of these areas the more points you gain. The trick is to make every single shot count.
Hunt the forest for all sorts of animals. There are secret objects what will get you bonus points as well as you can lose points by shooting the wrong things. Try to unlock different skin types by completing each levels.
Defending the building is even more intense in the sequel to Palisade Guardian. This castle defense shooting game will thrust you into the action with 6 modern weapons including an MP5, an M249 SAW, and even an RPG-7.