The following are known Game Genie Codes for Zen: Intergalactic Ninja on Nintendo Entertainment System (NES).

• 9 Lives Allowed In ‘Options’
  ZAELNGIE
• Infinite Energy
  GZNLYUSE
• Slower Timer
  NYNXVTOE
• Faster Timer
  YTNXVTOE
• Even Faster Timer
  YINXVTOE
• Zen Does Increased Damage (Isometric Stages)
  AEUAOLGE
• Zen Does Mega Damage (Isometric Stages)
  GOUAOLGA
• Jab Attack Does More Damage (Horizontal Stages)
  AAKXUIGE
• Mega Jab Attack Damage (Horizontal Stages)
  GPKXUIGA
• Infinite Lives
  SZSPGTVG
  SZOZYTVG
• Fewer Hits In Shield
  PAEUGGLA
  PAXUNTLA
• Double Hits In Shield
  TAEUGGLA
  TAXUNTLA
• Triple Hits In Shield
  PAEUGGLE
  PAXUNTLE