Enter the password:
tQW 5IT gxq Xev Vzf xvn

This allows you to warp to many different locations, and starts you off at Level 3 with all the swords, shields, magics, and items.

At any time during the game, press Select and two sets of characters will appear near the center of the screen. To change the left characters, hold B and press Up or Down. To change the right characters, hold A and press Up or Down. Press Select to continue playing.