The following are known Game Genie Codes for The Adventures of Bayou Billy on Nintendo Entertainment System (NES).

• Infinite Lives
  GZOVLLVG
• Start With 1 Life
  AAETAGZA
• Start With 6 Lives
  IAETAGZA
• Start With 9 Lives
  AAETAGZE
• Infinite Energy
  PEKVIZYA
  SXOOUKVK
• Start On Level 2
  PAEVZGAA
  UYEVGKPU
  AAEVAGGA
• Start On Level 3
  ZAEVZGAA
  UYEVGKPU
  AAEVAGGA
• Start On Level 4
  LAEVZGAA
  UYEVGKPU
  AAEVAGGA
• Start On Level 5
  GAEVZGAA
  UYEVGKPU
  AAEVAGGA
• Start On Level 6
  IAEVZGAA
  UYEVGKPU
  AAEVAGGA
• Start On Level 7
  TAEVZGAA
  UYEVGKPU
  AAEVAGGA
• Start On Level 8
  YAEVZGAA
  UYEVGKPU
  AAEVAGGA
• Easy Mode
  EVGENY
  Note: You have infinite energy except in shooting levels. There are no cars or planes/helicopters in driving levels.
• Gliding Billy
  ANIELT