Instructions
Download the GameShark 2 Monster Brain application from the developer's website (see the Resources section of this article).
Double-click on the "gs2mb.exe" file to launch the GameShark 2 Monster Brain application.
Enter the GameShark code that you want to convert into the text box in the top left corner of the application window.
Click the "GameShark > Monster Brain" button to convert the code.
Write down the resulting Poke Code that appears in the text box on the right side of the application window. This converted code can now be used with the Monster Brain device.