This is kind of an old followup, but I found out that Dolphin can't extract the Banner and Text information from the .WADs properly on Beat.Trip Core, Runner or Void. However, if you place the savegame/banner information from Bit.Trip Beat on the configuration/cache/title folders of Core, Runner or Void, the games run. They will complain something about the game save being corrupt/invalid, and if i can remember, the emulator will hang again if you try to overwrite them, so you can just select not to save any progress and play the game, however, their banner/name on Dolphin main list will be wrong. Maybe that's why the games hang when Dolphin itself tries to extract that data from the .WAD?
It's been a while since I've performed/researched that information, so I might be wrong on the save being corrupt and can't create a new one, but copying banner information from Beat into Core/Runner/Void folder certainly works.
Don't know if dumping your NAND will fix that problem (I guess it would, since they would come with the savegame/banner information from your Wii? I don't really know how Dolphin/Wii NAND integration works)
It's been a while since I've performed/researched that information, so I might be wrong on the save being corrupt and can't create a new one, but copying banner information from Beat into Core/Runner/Void folder certainly works.
Don't know if dumping your NAND will fix that problem (I guess it would, since they would come with the savegame/banner information from your Wii? I don't really know how Dolphin/Wii NAND integration works)