Dragon's Curse

Note: This game is also titled Adventure Island.

Full life:
Hold II when using a potion after dying.

Be Hu Man at start of game:
Enter NODEGOSOOOOOOO as a password. Note: Enter MODE FOR OOOO OOO in Japanese version of the game.

Disable door noise:
Enter RMAYTJEOPHALUP as a password. Note: Enter PLAY THE ONGA KUN in Japanese version of the game.

End quest:
Enter W0CV 5ATV KYR1 SV as a password to start with all required transformations and items for the final castle:

Super passwords:
Enter one of the following passwords to start with advanced items and abilities.
Information in this section was contributed by Rudy Herrington.

3WSURYXZY763TE
3YHURYW7Y7LL8C (Hawk-Man)
3YHURYW7Y7LPBS (Hu-Man)
3YHURYW7Y7LRBW (Lizard-Man)
3YHURYW7Y7LM80 (Mouse-Man Status)
3YHURYW7Y7LN84( Piranha-Man)
3YHURYW7Y7LK88 (Tiger-Man)

Hint: Secret weapons store:
Enter the house with a well in the first village. Fall down the well, and turn left towards the exit door. Place your character on that door, jump directly up, then hold Up while in mid-air. Enter the hidden door that appears above the exit door.