The following are known Action Replay Codes for SEGA Sports NHL 2K on SEGA Dreamcast (Dreamcast). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark

Away Team Scores 20 Points
F4899503
00000014

Home Team Scores 20 Points
529774D2
00000014

Home Team Scores 0 Points
529774D2
00000000

Away Team Scores 0 Points
F4899503
00000000