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

• Infinite Lives
  SZNKASVK
• Infinite Continues
  GXOKASVK
• Start With 1 Life And 1 Continue
  PENXYZLA
• Start With Double Lives And Continues
  TENXYZLA
• Start With Triple Lives And Continues
  PENXYZLE
• Gain Double Usual Energy From Drinks
  PESAIYIE
• Become Completely Invincible
  APEETPEY
• Infinite Energy/Health (Player 1)
  SZOEAOSE