Sure about that? Goro brain small!
I've done the hands and feet gameplay before, just not sure if it was mario kart or not (though it probably was). I've tried whacky things like that since the SNES actually.
More recently, and this was a few years back now... I was at gamestop with a friend and they had some demo set up.. I believe it was a fighting game.. and we tried to play it. Of course, becausse store planners there were idiots they had both GC and PS2 demo stations a foot apart from eachother. This meant that whoever was player 2 for whatever PS2 game was on was in the way of Player 1 for the GC.
Well on this particular day the PS2 player happened to be afat ****. I tried to squeeze in to play but my friend didn't feel the need to move and gimme some space (god forbid he's uncomfortable) so basically; I leaned in with my left arm outstreched in the most awkward position possible so I wasn't rubbing up against either dude, stretched my pinky out to use the control stick and my thumb was mnashing buttons.
Guess who one; I'll give you a hint - ME
If it were the other way around I woulda made jokes about how he's a pro at playing with one hand, etc, but he's not that bright.