Japanese VC Castlevania is the Famicom Disk System version
This probably doesn't affect any readers here (although, if you're a Japan-local Wii Fanboy, let us know!) but we discovered something interesting while drooling at the Japanese Virtual Console page.
Proving their absolute and irrational devotion to historical accuracy, the version of Castlevania going up on the VC this month will not be the same cartridge version that's already been released in the US and Europe. Instead, Japan is getting the original version, which was released for the Famicom Disk System in 1986. The differences include a save state feature and a name entry screen with music unheard in the US version! Which, unfortunately, we can't find. The idea that there's Castlevania music out there that we haven't heard makes us kind of uncomfortable.
