The following are known Action Replay Codes for NCAA March Madness 98 on Sony Playstation (PS1).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay, CodeBreaker & GameShark

Away Team Scores 0
800165800000

Home Team Scores 0
800151200000

Infinite Creation Points
d00956740001
800cb438015e
d00956740000
800cb438803e

Full Momentum Away Team
801081980000

Full Momentum Home Team
801081980064