Raving Toy Maniac

Does anyone remember an old shooting game from the 70s or possibly early 80s that had a gun that was attached to a box type thing that was actually a screen. It had a cowboy that would light up and you had to shoot him. If you died I think a flower went from being fully grow and each time you were hit it would drop down until you were dead. The screen was kind of like a plastic sheet or lcd where light shone through to make the picture..