How to Use Gameshark?

To use your GameShark you should insert the video game you intend to play in one side and the other side into the game system you intend to play. when you start your system you will be asked to input codes, you should have received a codebook with your GameShark. Based on the code you enter you can have any number of effects happen in your game such as, infinite lives or the ability to jump extremely high.