The following are known Game Genie Codes for Super Mario Bros. on Nintendo Entertainment System (NES).

• AATOZA
  Both Player 1 & 2 start with 1 life
• IATOZA
  Both Player 1 & 2 start with 6 lives
• AATOZE
  Both Player 1 & 2 start with 9 lives
• VATOLE
  Start with 8 lives for Player 1 and 3 lives for Player 2
• SXIOPO
  Infinite lives for both Players
• APZLGK
  Super-Jump from a standing start only
• TPZLTG
  Super-Jump from running only
• GPZUAG
  Super-Jump from turbo running only
• APZLGG
  Mega-Jump from a standing start only
• APZLTG
  Mega-Jump from running only
• GAZUAG
  Mega-Jump from turbo running only
• YAZULG
  Moon Gravity from a standing start
• YAZUIG
  Moon Gravity from a running start
• YAZUYG
  Moon Gravity from turbo running only
• OZTLLX + AATLGZ + SZLIVO
  Always stay big
• YSAOPE + YEAOZA + PEAPYA
  Start on World 2
• YSAOPE + YEAOZA + ZEAPYA
  Start on World 3
• YSAOPE + YEAOZA + LEAPYA
  Start on World 4
• YSAOPE + YEAOZA + GEAPYA
  Start on World 5
• YSAOPE + YEAOZA + IEAPYA
  Start on World 6
• YSAOPE + YEAOZA + TEAPYA
  Start on World 7
• YSAOPE + YEAOZA + YEAPYA
  Start on World 8