I am trying to download that Wii Fit U trial for a week now.
It fails on installing. Sometimes it says error 105-3155, sometimes it's something else, but either way i have to delete the data and download it all over again.
I think i downloaded this game five times by now.
It could have something to do with my hard drive setup -- the one i have is just old-ass IDE drive with cheapo USB converter attached.