In the WonderSwan set there's the game Uchuu Senkan Yamato (2001-02-08)(Bandai)[SWJ-BANC09] which is actually a WonderSwan Color game, and not a normal WonderSwan game.
It is also present already in the WonderSwan Color set in this torrent, the non bad dump version: Uchuu Senkan Yamato (2001-02-08)(Bandai)[SWJ-BANC09]. You might wanna transfer it to that set.
Another question is if there's a reason that the files are all kept in .bin format, would be the same if they would straight away be renamed to .ws respectively .wsc, thus you wouldn't have to rename them when using. RetroArch f.ex. doesn't detect the core automatically when using the .bin format for WonderSwan.
