In Rondo of Blood (and it's sort-of-remake, Castlevania: Dracula X), there were hidden, branching paths that the heroes could find, often times with the "eless good" path being down pits that it was hard for the heroes to avoid. Tricky.

I will admit that the Cavern isn't supposed to happen after the Chapel. If I was doing a proper riff on a remake of the original game, the remake being Castlevania X68k, the caverns happened after the first level. The Chapel was actually level 4.

Here, we're sort of riffing on both those games in an elaborate pastiche.
 
    

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.