Instructions
Download and install PEC.
Open PEC. Click "File," "User Database" and then "Add Cheat."
Double-click on "New Cheat." Enter a name for the cheat in the "Title" field and the GameShark code below that. Click "Add."
Check the box next to your cheat. Click "Okay" and then "Send Cheat to Plugin."
Start ePSXe and load your game. The GameShark codes are now active.