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

• PENEZTLA
  Start with 1 Chance
• TENEZTLA
  Start with 6 Chances
• PENEZTLE
  Start with 9 Chances
• SZOEKAVG
  Infinite Chances
• SXEXLYVG
  Infinite Crane Kicks
• SZNXAYVG
  Infinite Drum Punches on pick-up
• AAKVUGGE
  8 Crane Kicks in a 1-Player Game
• AAKVKGGE
  8 Crane Kicks in a 2-Player Game
• IAKVSGAA
  Player 1 has 5 Cranes in “One on One”
• ZAKVVGPA
  Start on stage 2 in a 1-Player Game/li>
• ZAKVNGPA
  Start on stage 2 in a 2-Player Game
• LAKVVGPA
  Start on stage 3 in a 1-Player Game
• LAKVNGPA
  Start on stage 3 in a 2-Player Game
• GAKVVGPA
  Start on stage 4 in a 1-Player Game
• GAKVNGPA
  Start on stage 4 in a 2-Player Game