Palisade Guardian 3
The aliens are here and they are not going to stop till we are all eradicated. We need to stand up to them and fight them as we see them. We need a brave man to do that. Those aliens would not stop till we are eradicated from the face of the planet. We need to stand up to them. The game is played with a mouse and keyboard. You need the mouse for shooting and the rest with a keyboard. You earn money from killing aliens and you can use the money to buy some upgrades. The game becomes harder and challenging as you make some progress, so buy those upgrades or you might regret it.