The following are known Game Genie Codes for The Legend of Zelda II: The Adventure of Link on Nintendo Entertainment System (NES).

• SZKGKXVK
  Link has infinite lives
• PASKPLLA
  Link starts with 1 life
• TASKPLLA
  Link starts with 6 lives
• PASKPLLE
  Link starts with 9 lives
• AZUOLIAL
  Mega-Jump
• OYKEEVSA + NPKEOVVA
  Swap the Shield Spell with the Fire Spell
• LYKEEVSA + VAKEOVVE
  Swap the Shield Spell with the Spell Spell
• LZKEEVSA + OPKEOVVA
  Swap the Shield Spell with the Fairy Spell
• IIKEEVSE + VAKEOVVE
  Swap the Shield Spell with the Life Spell
• VTKEEVSA + OPKEOVVA
  Swap the Shield Spell with the Thunder Spell