ROFL...ditto...I quit playing after round 13. I noticed the speed wasn't getting any faster and I was well over 200K points. My wife came down and was laughing at me looking so intently at the game.
When the original NES came out, I found that the pistol could be aimed at a "Sweet spot" on the screen and as long as you pulled the trigger, it would kill the duck, no matter where it was on the screen. I was bored one day and ran it up to 1,000,000 points.