Hold Right on controller two and press A on controller one.
Press Start to pause game play. Hold Up + A on controller two to display the current password.
Enter JUSTIN BAILEY ------ ------ as a password to play as the girl and start at Ridley's Lair.
Enter 999999 999999 KKKKKK KKKKKK as a password with no Varia suit and a different ending.
Complete the first quest without dying and with all the items (ice beam as your gun weapon). Press Start after the credits have completed. If you have completed the game correctly, Samus will take off her suit in the ending. You will start with all your items you gained in the previous quest minus your missiles and suit in the next game.
Go to a pipe that has enemies constantly appearing at ground level with no other enemies around. Just keep shooting and the enemies will fly into your bullets, leaving energy and other items.
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