I'm a bit late to the game (and apparently, I'm not allowed to upvote in the closing hours of a post... huh, you learn something new every day...).
A rivalry that still haunts me all the way to the present day. Mario Kart on the SNES, we all had that friend who would just rub it deep into your face when the were on fire and just kicking your arse. Well, I had one of those, and just recently we both got hold of a Switch, and I can feel the pressure to get back to the new and updated Mario Karting no-holds barred rivalry again....