Good list, RT-55J. I edited the list only a tiny bit, just adding Castlevania: Bloodlines on the Genesis. (My brother was telling me about someone on GameFAQs who though for so many years that the title was "Castlevania: Bloodiness", heh...) Initially I removed the Game Boy Color games as I was sure that was an error but Wikipedia lists them. I was not aware that there were colorized remakes. Anyway, they're back on the list.
I'll have to remember to rename "The Castlevania Adventure" to "Castlevania: The Adventure", not to mention fixing all those "CamelCaps". (Force of habit...the early games clearly show stylization of the V that could be assumed to be capitalized.) Also, I thought I had to fix "Chi no Rondo"'s English name to "Dracula X: Rondo Of Blood", but apparently thanks to the PSP remake, my initial "error" of calling it "Castlevania: Rondo Of Blood" turned out to be correct anyway. :p
I notice you didn't list the 3D games. Peardian is mapping Paper Mario (N64) so they wouldn't be impossible to map, per se. I'm pretty sure someone started a topic just looking at the 3D data for Castlevania (N64)... Not that we should expect maps of 3D games soon, I'm just saying. But you could always edit them in when they come, if they come.