I am very excited to announce that you can now mod SSS4 on 3ds using Hans. A youtuber that I have been in contact with has finally found a way and has proof on his channel. There may be some minor problems but we are still working on a way to fix these. But other than that if you follow his tutorial you will have modded characters in no time. Good luck! This is the first video on youtube regarding a tutorial through HANS so a like to him would be great.