Mafat Conspiracy: Golgo 13

Debug Menu
In the Japanese version, at any time during the game, including intro, title or any other screens, hold the Select button on the first controller, then press A, B, A, B, A, B, A, B, A, B, A, B, A, B, A, B on the second controller. You will be able to select any cutscene or level.

In the US version, this cheat was disabled, but the code to get to the debug menu was left intact. Using the Game Genie code, you can access this screen after resetting the console. It should be noted, however, that upon using this Game Genie cheat, once a level has been selected and you die, you will start back at the "stage select" screen rather than being given the option to continue.