Game Shark !?!?!

Hey, a do any of you dudes understand Game Shark?
No other friend of mine understands it sense they hardly use cheats... even when they beat a game. Once they beat a game they just throw in the closet and let it get moldy. What kind of monsters are they? What I mean is there are cheatcodes for a reason. When you beat a game you can play it again but with the cheats to make more fun.(Does anyone agree with on this or on this, milk should have an extra 2 days before they expire into a trashcan) <font color="green"> </font>