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

• 1 Life
  PANSGIIA
• 10 Lives
  ZANSGIIE
• Infinite Lives
  SXUKOKVK
• Infinite Energy
  GXXGXGST
• Maximum Energy From Chili Dogs
  AEVLIPZA
• Only 10 Magnum Bullets Allowed
  ZESSTSPO
  ZEVIZSPO
• 50 Magnum Bullets Allowed
  ZUSSTSPP
  ZUVIZSPP