The following are known Game Genie Codes for Double Dragon II: The Revenge on Nintendo Entertainment System (NES).

• Player 1 Starts With 8 Lives
  AASVETGE
• Player 2 Starts With 8 Lives
  AAVVSTGE
• Player 1 Starts With 1 Life
  PASVETGA
• Player 2 Starts With 1 Life
  PAVVSTGA
• Never Lose Lives From Falling
  SZXAYKVS
• Never Lose Lives From Low Energy
  SXOANXVS
• Never Lose Lives From Water
  SZVESUVS
• Start On Mission 4
  LAUTXTAA
• Start On Mission 5
  IAUTXTAA
• Start On Mission 6
  TAUTXTAA
• Start On Mission 7
  PAUTXTAE
• Slow Down Gameplay
  NNEVOIAE
• Speed Up Game
  EEEVOIAA
• Slower Moving Characters
  YUPOET
• Fight In The Dark
  APISTY
• Fewer Enemies (Do Not Pick Up Weapons)
  OZOOLA
• Flashing Mode
  UNAGAL
• No Music
  SUNETO
• Changes Colour
  ASSGAS
• Slow-Motion, Streetfighter Style Death For Enemies
  SAPAIA
• Strange Fighting (Can’t Pass First Stage)
  YYEAEA
• Rising Knee Goes Higher
  TOKEXT
• Punch To Do Teleporting Jumpkick
  PVOEXG
• Cyclone Kick Makes You Grab The Last Thing You Held
  ZZNEXV
• Fast Music
  AAAAAG
• Crazy Stuff
  AAAZAA
• P1 Can’t Be Touched
  IANEAA
• Start On Last Battle
  TALTXV
• P1 Starts With 128 Lives!
  EAIVEV
• Enemies Vanish Instantly Upon Death
  AELEXZ
• Start With 20 Lives
  EEUTLZZA
• Start On Level 2
  PAUTXTAA
• Start On Level 3
  ZAUTXTAA
• Start On Level 8
  GAUTXTAE
• Start On The Final Boss
  TAUTXTAE
• P1 Starts With 259 Lives
  NYSVETGE
• Billy Uses Closest Arm To Punch
  PEPENG
• Billy Uses Farthest Arm To Punch
  NNZASK
• Strange Cyclone Kick
  PAYEXT
• Billy Punches Slowly
  PELAVG
  Note: This makes just about everyone else punch slowly too.
• Enables A Beta Difficulty Selection
  AANNAIEA
  AENNGLEA