Hi!
Perhaps this information could be useful for the Castlevania Anniversary Collection's page?
http://forums.nesdev.com/viewtopic.php?f=3&t=19677#p245961

English translation of Kid Dracula requires a special SRAM savefile that is generated on launch by the Collection's scripting engine.

It's possible to run it on other emulators by taking the SRAM data from the script (the path is "073\script\title_standalone.nut") and saving it as a .SAV file, which should be compatible with any emulator.