The following are known Action Replay Codes for NBA 3 on 3 Featuring Kobe Bryant on Nintendo Game Boy / Color (GB / GBC). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark

Team 1 Scores 0
0100C7C2

Team 1 Scores 150
0196C7C2

Team 2 Scores 0
0100C8C2

Team 2 Scores 150
0196C8C2