Castlevania: Resurrection was in development for the Dreamcast at Konami in 1999. Although it was canceled that same year, images have now surfaced.
It is a video of a person holding the demo. He or she plays part of the 3D game, where we see different environments, among other things. This short demo of the game was made for E3 1999. However, Konami canceled the game afterwards due to unclear reasons. At least thanks to this video we can get an idea of what the game would have been like.