Pitfall: The Mayan Adventure Cheats

At the title screen, press L, Select, A, Select, R, A, L, Select to enable cheat mode.

Level select

Enable the "Cheat mode" code, then press L or R to select a level. Press Left to highlight "Start" to begin a game at the selected level.

All weapons

Enable the "Cheat mode" code, then begin a game on any level. Hold Select and press B during the game to get 99 of each weapon.

Free movement

Enable the "Cheat mode" code, then begin a game on any level. Hold Select and press the D-pad during the game to move in any direction.