I spent over a week setting up the 3DS MAX Scene for the 3 Mario Live Wallpapers that he hijacked from me plus he stole a lot of my animated gifs I have created about half th work on his profile he took from me.
You realise that Mario characters are copyrighted and you will be banned for using them sooner or later? Maybe you could use that against that German in the meantime, report him for using them.
These aren’t published on google play anymore, plus I was given permission from a lady that works for Nintendo that was in charge of licensing, she said they were ok as long as they were free apps. This was back in 2011 when no one was strict.