Instructions
Launch Fusion. Click "File" and "Load" to open a ROM/game you want to play.
Click "File" and "Game Genie/PAR." A "Game Genie/PAR" window appears on your screen.
Click the "Code Finder" button, then the "Count" button. Another window appears. Enter a number into the blank field and then click "Find." You are entering a number to guess how many codes the Code Finder can find. For example, if Code Finder finds a code for infinite lives, you must come back to Code Finder to get that code. All you have to do is click "Game Genie/PAR" from the "File" menu, click "Code Finder," click the code you want to use, then click OK."