Also totally breaks the game
Go ahead and skip to 2:40 in the video. That’s about when the chaos begins.
This demonstration from YouTube user mariohack&glitch shows how stupidly fast Mario Kart 7 can get when you tamper with the settings using, in this case, a QR code and an Action Replay.
The exploit doesn’t seem fun, exactly — not with those constant resets. Yoshi soars across the map, usually straight to his doom. The struggle to get over that ramp was amusing, though.
The code can apparently be used in online play and, as such, there aren’t plans to release it.