Castlevania II: Belmont's Revenge

Castlevania II: Belmont's Revenge is a 1991 Game Boy video game developed by Konami and released by Konami Inc. in the USA on August 9, 1991. Fifteen years after vanquishing the emperor of evil, Count Dracula, Christopher Belmont now faces a vampire swearing vengeance. Drac's back. And he's turned your son, Soleil Belmont, into a deadly demon to do his dirty deeds. Now not only do you have to… rescue your kid from the Count's clutches, you have to first track him down in four creep packed Castles. Fortunately, you posses weapons like armor piercing Battle Axes, beast burning Holy Water, and the Legendary Mystic Whip. And you can increase your arsenal with power up items like Crystal Balls, Hearts, and Candles. Strap on your shield and step into the shadows. That is, if you're prepared for the dwellers of darkness.