I installed haxchi over Mario Kart DS. But I forgot, I should have installed it over "dr kawashima's brain training how old is your brain", instead. Because I kind of like mario kart DS. I think I just downloaded brain training for free at some point. I never paid for it, I think it may even have been spotpass? So....can I uninstall haxchi, reinstall mario kart DS, then install haxchi over brain training, instead? Any advice on how to properly do it? Thanks. Or, maybe can I install another mario kart DS, with the MKDS I already have still being on the system in the form of haxchi?