The Justin Bailey code is one of them. The way to enter it is this: Enter the name above, followed by spaces on the password screen in the lower right corner. This will give you all the power-ups, 255 missiles, and a wave beam, and she will have no suit on. She will also have no ice beam, and will take you to Norfair. The other is the Narpas Sword cheat. Enter that with 0's following it, and it will get you all her power-ups and infinite health.