Duck Hunt is a great game and still is fun to pick up and play!
The games sense of humour stretches further then just in the game. I'm pretty sure Nintendo put the laughing dog in to give you and whoever might be there a nice kick!
I'm not to sure if you can find the game now but if you can find it some where in your house you should pick it up and start playing. It won't keep you interested for too long but this is still a game you have to try!