Thats cool it was just a suggestion. It feels good, and I like the bell. Makes it tense. Instead of the minigame, if you pull your gun close to when the bell sounds, then maybe it can just say "Perfect Draw" or "Quick Draw" something to let the player know how they're doing. Some other thoughts:
I had trouble figuring out where my shot was going.
Right now you can just hold down the right mouse button to reload. I always like in westerns when they hit the hammer rapidly and shoot, so it would be cool to try and mimic that feeling.
Some small nitpicks - "Shoot the opponent before he does." should probably be something like "Shoot the opponent before he shoots you." Also saying 6 bullets and 5HP doesn't mean a whole lot unless you know how much HP each bullet takes away.
Nice progress though