1. Click to shoot 2. Sometimes targets will be hard to find 3. Green targets can be almost impossible to find and you must get them sequentially (or they won't show up) 4. There is a way to get the secret level instantly 5. there is a .65 second delay before a bullet can hit the target 6. If you are on a mac it might glitch 7. Best experienced in full screen!
Original credit: @Porgs57, @MJM3
