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

• Infinite Ammo
  SZNIPPVG
• Always Hit The Duck In Single-Duck Mode
  ELXSLZEI
• Always Advance To The Next Round (Miss All Of The Targets To Get The Perfect Bonus)
  ALSIPLEI
• Get The Perfect Bonus For Hitting At Least 10 Targets
  ZEUIYZAE
  ??USP?UU
• Always Get The Perfect Bonus
  AASIAUZA
  ALSIPLEI
• Get The Perfect Bonus Only For Hitting 20 Targets
  GPSIAUZA
  ALSIPLEI