I’ve been trying for a full day to get a 100% savefile of Nintendo Land. I’m aware that saves are tied to Miis but I really do not understand how I can transfer the 100% save found on gbatemp to my current wiiu/mii. It used to work (the very same savefile) on my old wiiu but that was so long ago that I’ve forgotten how I did it. Really hope someone can help me out.
fixed it, the steps are super different from normal with this game and i dont even know if everything i did was needed
-i had 2 profiles, a pretendo profile and my old profile
-disabled pretendo in inkay while still using that profile
-in savemii, wiped my current Nintendo Land saves
-now got the custom 100% save and put it on the NNID profile (not pretendo)
-so now the pretendo profile should be empty, and the old profile should have the save
-open the game on the pretendo profile
-everything works now and the save is registered. time to relink the pretendo account to the profile
im glad i managed to fix everything but the flag ingame on my mii says united states when the game and savefile (and even my pretendo account) all are from PAL. even on juxtaposition it doesnt say USA but my actual country. any way to change this?
That might be a relic of the 100% save file from GBAtemp? Honestly, I have no idea. 
I assume there’s no way to change that, right?
Probably not, unfortunately.
The savefile you find on GBAtemp is a “common” one? Because it’s the only one i can find and from what i know it isn’t for a single mii.
I don’t know how but I lose my savefile of Nintendo Land and Wii Party U. I’m trying to replace them but with no results.
I too have a PAL version, so I tried to do the steps you wrote using the “common” savefile I found, but it hasn’t worked. Therefore I’m asking you if I’m missing something.
If nothing comes to your mind and I’m not asking too much, could you send me your current save file?
Sorry if my English is bad.