NARPAS SWORD

NARPAS SWORD is a code used in the original Metroid for invincibility and unlimited missiles. If a player enters the code in all caps, followed by zeroes, they will be at the beginning of the game with all upgrades, invincibility and unlimited missiles. Samus's energy will not go below 30. All upgrades can be collected, but Samus can already use them. Since a player can not die, there is no way to save while using the code. If a player beats the game while using the code, they will restart the game with Zero Suit Samus, with the same effects.