The following are known GameShark Codes for Madden NFL 2003 on Sony Playstation (PS1).

• P1 Press Sel+R1 for Home Team Win
  D007F33E F7FE
  3006F344 0063
  D007F33E F7FE
  30071424 0000
• P1 Press Sel+R2 for Away Team Win
  D007F33E FDFE
  3006F344 0000
  D007F33E FDFE
  30071424 0063
• P1 Sel+X For 1st Down
  D007F33E BFFE
  3006BC54 0001
• P1 Sel+O For 4th Down
  D007F33E DFFE
  3006BC54 0004
• HT Scores 100
  3006F344 0064
• HT Scores 0
  3006F344 0000
• HT Inf Time Outs
  3006F346 0003
• HT No Time Outs
  3006F346 0000
• AT Scores 100
  30071424 0064
• AT Scores 0
  30071424 0000
• AT Inf Time Outs
  30071426 0003
• AT 0 Time Outs
  30071426 0000