The following are known Action Replay Codes for Best of the Best: Championship Karate on Super Nintendo Entertainment System (SNES).

• Player 1 Can Play With Any Boxer
  00A1E302

  Note: You cannot use any Special Moves or get a password.

• Less Strength
  00A1E40A
• More Strength
  00A1E432
• Less Resistance
  00A1E50A
• More Resistance
  00A1E532
• Less Reflexes
  00A1E60A
• More Reflexes
  00A1E632
• Start With 1 Special Move
  01A6E201
• Start With 8 Special Moves
  01A6E208
• No Special Moves For Player
  01A6E69C
• Infinite Special Moves
  01B409BD
• Virtually Infinite Energy
  01BF1208
• Time Modifier
  7E1A390X
• Round Modifier
  7E1F0D0x
  7E1F110X
• Infinite Health
  7E0221:FF
• Opponent Has No Health
  7E0222:00
• Max Resistance
  7E0455:63
• Max Strength
  7E0457:63
• Max Reflexes
  7E0459:63