Debug Code Japanese Version
Enter the options menu and press A Y C. Enter the set up screen which is the first item on the options menu. A new debug option is now at the end of the set up screen list.
Debug Code US Version
Hold X B Z Down in the options screen. Each option will begin cycling. Press C when the "Exit" option is highlighted. Enter the DIP switch screen and select the debug option.
Begin a game on easy difficulty then press Reset. Return to the Options menu and select any difficulty level to begin another game with 99 continues.
Enable the 99 Continues code then press Reset during game play. The Experience menu will appear at the cost of one continue.