Hey Bro, if you have unlocked the costumes, is there a possibility to upload the save (assuming you have a modded Switch, of course)?
I have the same problem with the last 3 characters not unlocked. Read thru you guys comments and decided to solve the problem last night. And I just found out the solution. So basically, you must have your Nintendo account link with your local account in order to unlock the last 3 character and have the system clock sync with the internet.
- What I did to solve the problem (without risking ban) was restore my sysnand from my clean Nand backup (as i'm using emunand right now with sx os).
- After restore the sysnand, I turned off the system, take out the sd card. Turn it on again normally as you do with a legit system.
- Get into the system, set the clock, connected wifi and link extra Nin account to the system (as I have 1 main account and 1 extra, so I decided to link my extra one).
- After that, disconnect wifi, clean all the internet settings. Reset all caches and stuffs. Turn on Airplane mode. Turn off the system. Put the jig and dongle and started to created the emunand (Note that you will need a clean sd card to create new emunand) from sysnand (the one we just got linked account).
- After all is done, jumped to your emunand, install the game, all updates. And there you go, you will have the last missing 3 characters.
I know this is time wasting to do for one game but, I rather do this legitimately with my account than using Kefir updater (looks shady AF). You can also access to play MK11 with this setup so it's worth to my case.
I dont really know about the 100% save with all the skins and stuffs, but i just need all characters bases on my liking and going to go thru the campaign by myself.
Good luck !