I just sucessfully downgraded my n3ds and got mhx with update 1.1 working. But then a question popped into my head. Would it be possible to have a MHX v1.1 and a v1.0 on the same 3ds? Or would they just overwrite each other. I'm asking that because I then could technically give my brother my (now useless) mhx cartridge and play with him the 1.0 version. He is too afraid to downgrade and its his own decision not to do it so I respect that. Just would be cool if we could actually play together. (I assume you can't play together with different version ^^'). If I need to I would just get a cheap 2ds. But before I pay I just wanted to know if its possible.