Castlevania 2 Cheat Codes for Gameboy

Ten Fighters
For your password, enter in candle, candle, heart, heart.

Cloud Castle
On the password screen: Heart, Heart, Crystal Ball, Blank.

Final Showdown
On the password screen: Ball, Heart, Candle, Heart.

Crystal Castle
On the password screen: Blank, Candle, Heart, Heart.

Rock Castle
On the password screen: Candle, Heart, Heart, Crystal Ball.