Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
I want to play Mario Kart on Wii U, but I don't want to mess with the existing game data. Is there a way I can have my own separate profile?
Yep, just use a different Mii profile. Each Mii will have a different save file. Within your own Mii it is not possible to have multiple save games.
Required, but never shown