Castlevania: Legacy Of Darkness cheats and cheat codes for Nintendo 64

Unlock Henry as playable character:
Finish the game once with Cornell. Watch the ending credits and save 
your game. After, load back your saved game file to unlock Henry.

Unlock Reinhardt from Castlevania as playable character:
Unlock Henry, and finish the game once with Henry. Watch the ending 
credits and save your game. After, load back your saved game file 
to unlock Reinhardt.

Enable hard mode:
Play as Henry and save 3 children. Finish the game and save to
unlock the new difficulty level to next game play.

Unlock new costumes for Cornell:
Play as Henry and save 2 children. Finish the game and save to
unlock Cornell's new outfits.

Renon as opponent:
Buy items and spend at least 30,000 gold