The following are known Action Replay Codes for Bomberman Hero on Nintendo 64 (N64).

Device Compatibility: Action Replay & GameShark

Full Bomb Power
8016523f0003

Full Fire Power
801652400008

Infinite Health
801652440004

Infinite Lives
801652430009

Extra Gems
d01652410000
80165241004b

Press GS Button For All OD Bombs
8805749500ff
8805749600ff
8805749700ff