Castlevania is not a platformer. Just because you can jump doesn't make it a platformer. Mario is a platformer and so is sonic. Those are all about timed jumps where as in castlevania it isn't. There are a few instances of it but for the most part it is and action/adventure game.

There really are not that many actual platform games out there. Mario is still true to its roots others have not really followed.

2D<>Platformer.