The Leviathan Command Codes are used during the events of Metroid Prime 3: Corruption when Samus Aran is sent to gain control of the Leviathan Battleship in orbit above the Space Pirate Homeworld. However, to do so, she needs to find the codes on the G.F.S. Valhalla.
After collecting them, Aurora Unit 242 will contact Samus and give her various messages. If Samus acquires them before discovering the battleship, 242 will say she can not confirm the purpose of the codes, although she says they may become useful. If Samus downloads them after discovering the battleship but before entering it, 242 will suggest that the codes command the battleship. If Samus discovers and enters the battleship, she will be told to use them.
It is unknown what the actual codes are, but it is likely that they are written in Space Pirate language.
|Seeds||Impact Crater • Bryyo Seed • Elysia Seed • Pirate Seed • Leviathan Battleship|
|Biology||Leviathan womb • Leviathan Infant • Leviathan optical organ • Phazon Core • Tentacle|
|Guardians||Metroid Prime • Emperor Ing • Mogenar • Helios • Omega Ridley|
|Inhabitants||Fission Metroid • Lumigek • Parasitic fungus • Phazon Leech • Scorchbug • Scritter • Swarmbot • ULF 12 • ULF 14 • ULF 49 • Maggot|
|Technology||Leviathan Command Codes • Wormhole • Large Leviathan-class armed ship|
|Items||Hyper Ball • Hyper Grapple • Hyper Missile • Force Ball|