Instructions
Push your "Donkey Kong 64" game cartridge into the game cartridge slot of the GameShark Pro.
Push the GameShark Pro into the Nintendo 64 game cartridge slot. Turn the Nintendo 64 on by pressing up on the power switch.
Press "Start" at the GameShark Pro screen.
Enter any codes you wish to enable. Press "Start" to continue to the "Donkey Kong 64" title screen.
Press "Start" and select your save file. As you begin playing, the cheats will automatically be enabled.