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

• Lose No Life Points When Shot With Pistol
  SXEZTYSA
• Lose No Life Points When Shot With Sub-Machine Gun
  SXOZIYSA
• Lose No Life Points When Punched
  SXXZLYSA
• Start With 1 Life Point Instead Of 16
  PEOKIPAP
• Start With 2 Life Points
  ZEOKIPAP
• Start With 4 Life Points
  GEOKIPAP
• Start With 8 Life Point
  AEOKIPAO
• Start With 12 Life Points
  GEOKIPAO
• Start With 20 Life Points
  GOOKIPAP
• Lose Foot Health Very Slowly
  SXOYYUSE
• Start With No Pistol Shots Instead Of 15
  AEXGPOYA
• Start With 5 Pistol Shots
  IEXGPOYA
• Start With 10 Pistol Shots
  ZEXGPOYE
• Start With 20 Pistol Shots
  GOXGPOYA
• Start With 25 Pistol Shots
  POXGPOYE
• Infinite Pistol Shots
  ATNALXVG
• Infinite Sub-Machine Gun Shots
  ATNEIXVG
• Infinite Shots On All Guns
  ATVEIZSZ
• Run Timer Down At 1/4 Normal Speed
  ENUYPOGL
• Run Timer Down At 1/3 Normal Speed
  KUUYPOGL
• Run Timer Down At 1/2 Normal Speed
  ANUYPOGU
• Run Timer Down At 2X Normal Speed
  TOUYPOGU
• Run Timer Down At 3X Normal Speed
  GOUYPOGL
• Run Timer Down At 4X Normal Speed
  YEUYPOGU
• Freeze Timer
  AVUNGPSZ