The following are known Action Replay Codes for Grid Runner 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

First Person to a Flag Wins
3009D4A20001

Easy Win Player 1
3009D4a2000f
e009D4a2000f
3009D3Df000e

Infinite Bonus Level Time
800912B8ffff