The following are known Action Replay Codes for International Superstar Soccer ’98 on Nintendo 64 (N64).

Device Compatibility: Action Replay & GameShark

Infinite Character Creation Points
d01af9710002
801af9710063
d03e0cb20001
803e0cb20063

Team 1 Scores 0
801a8afd0000
8011ddaf0000

Team 1 Scores 50
801a8afd0032
8011ddaf0032

Team 2 Scores 0
801a99790000
8011ddaf0000

Team 2 Scores 50
801a99790032
8011ddaf0032

Big Head Mode
8019dc740001

Unlock All-Stars
800d9f540002