The following are known Action Replay Codes for NHL 2000 on Nintendo 64 (N64).

Device Compatibility: Action Replay & GameShark

Home Team Scores 0
80047c720000
80117ba00000

Away Team Scores 0
80047cce0000
80117c3c0000

Home Team Scores 50
80047c720032
80117ba00032

Away Team Scores 50
80047cce0032
80117c3c0032

Infinite Creation Points
800955822400