Battle with Rubas:
Enter EF1KDK.KTX as a password.

Extra items:
Enter FE1K10.TDK as a password.

Super passwords:
Intentionally die immediately after starting a new game. Change the first two letters of the password displayed to "EF" or "FE", then re-enter the revised password. Your character will have 102 hit points when game play resumes.

Enter FEZN3I6P.Q as a password for 222 hit points, all the armor, and six out of seven Bells.