The following are known Game Genie Codes for Astyanax on Nintendo Entertainment System (NES).

• Infinite Spell Energy
  AUEKGUAP
• Infinite Life Energy
  SZUGTISA
• Double Life And Spell Energy
  AZKAVZGO
• Start With Blast Spell
  PAKEKZAA
• Start With Bind Spell
  ZAKEKZAA
• Start With Extra Weapon Power
  GPKAXZGA
• Keep Weapons After Death
  SZUGEUVK
• Start With 1 Life
  AEUEUGZA
  AASAXZZA
• Start With Double Lives
  IEUEUGZA
  IASAXZZA
• Start With Triple Lives
  AEUEUGZE
  AASAXZZE
• Infinite Power
  SXKGYISA
• All Enemies Are Invincible
  AKTSPP
• Can’t See How Much Life, Weapon Or Spell Power You Have
  AUAKGP
• The Things Those Green Balls Drop Don’t Hurt You
  AGISOT
• Intro Music Is Changed
  NNPPIS
• Start With A Weapon Power Upgrade
  SVLGTX