Unlocked mirror mode on Mario Kart World. Haven't really touched the open world much because it's boring as shit imo so it took a little while to get it. Unfortunately you don't seem to get anything for 100% completing anything in the game, but I still really want to get perfect marks on at least all of the Grands Prix including mirror mode.
@teto yeah I never thought the open world would be any good whatsoever and it really isn't. Some people are having a good time with it but that is not me. I wanted the game for the racing, and the racing is fun. The p switch missions can be fun and challenging, but all you get for doing them is stickers which are equally as pointless. You get stickers for hitting question panels and getting peach medallions too. So 3 different things you can do in the open world that all give you the same shit. It's the korok problem from botw/TotK all over again but far less useful. It's like they had this great idea for the race tracks to all connect to each other and exist in a world, but then they half-assed the world element. It would have been way better if they just copied need for speed's open world design wholesale. Make me drive to the races, give me money for collecting medallions that I can spend on karts or kart upgrades (or even stuff like costumes and paint jobs or extra characters) and I would have been much happier with it.