Haunted Castle is the title of one of the earliest Castlevania games -- although it's not officially a game in the series proper. It was developed by Konami around the same time as Castlevania and Vampire Killer, and uses a similar backstory, characters, and (of course) Dracula.

It's a shitty game, but I love to throw in a good reference once in a while.
 
    

When evil spreads across the land, and darkness rises and the monsters roam. When the creatures of the night make beautiful music, and the things that go bump in the night go bump with greater enthusiasm. When the world is in peril and is in need of a hero...

These guys are, sadly, the best the world can hope for. These are the adventures of the heroes of CVRPG. They mean well, they try hard, and occasionally they do the impossible...

They actually do something heroic.