-Aim with your mouse -Click to shoot -Hold mouse down to shoot continuously -Don't let enemies get you -Shoot as many enemies as you can -The gun will upgrade itself over time, shooting faster and more. -Enemies become faster, hardier and more in number over time -Use number keys 1, 2 and 3 to change music -Whenever the project is updated the highscore is reset -The game gets very hard very quickly -up/down arrow keys to adjust sound effects volume -left/right arrow keys to adjust music volume