Castlevania 64 Cheats

Expert mode:
Finish the game and wait until the credits end. Save the game, then restart to access the "Hard" difficulty setting. REMEMBER: The first green jewel for the Secret #1 entry on the item list must be collected. It can be found in the Silent Forest (level 1). Locate the platform that is floating next to a bridge. Jump to the platform and hit the torch to find the jewel.

Alternate costumes:
Finish the game, using either character, after finding the two special crystals in the towers under the "Hard" difficulty setting. 

Unlock Carrie Fernandez:
As Henry, Finish the game after finding the child in the outer wall. Carrie Fernandez will be unlocked for the next game.

Unlock Reinhardt:
As Henry, Finish the game after finding the child in the villa. Reinhardt will be unlocked for the next game.

Renon ending sequence:
Purchase more than $30,000 in items from Renon during game play. A battle with Renon will appear at the end of the game.

Solving the Goddess astronomy puzzle:
Set Gold on 2, Red on 4, and Blue on 8.

Finding food:
Look at the statues to find chickens or slabs of beef.

Speaking with Rosa:
Speak with Rosa when she appear in the rose garden in the Villa at 3 a.m.