Frantic 3

Game description: 

Despite the fact that this cosmic battle takes place not in space, but on a piece of paper, you have to confront the very real enemies that want to destroy you. Use all weapons to beat all enemies. For every downed enemy spaceship you will get the reward that you can spend to improve your ship. At the end of the level you will find a boss who will try to do everything to erase you in the dust. Become a real space guard and defeat all the enemies!