Smurfs Kart

I've seen information Smurfing around the net that to get this and Smurfy Smurf, you have to Smurf other Smurfs with items, but that doesn't Smurf to be the case. I've been Smurfing this medal and Smurfy Smurf on races where I Smurf 0 items, while hunting for Target Smurf.

It looks like simply bumping into other racers - or them bumping into you - is all that's needed to count as "Smurfing" them. So best bet is to hang back at the start of the race, let the other racers lap you, and hope they bunce you as they pass by. Then complete a lap and repeat x 3 - avoid all berries and boosts, don't do any jumps or use any items, and don't go off-road. If the other Smurfs aren't hitting you with items as they pass by, try to hit a few spikes as you do laps - enough that you no long qualify for Untouchable, but not enough that you might get Target (around 6 or 7? Shockingly, nobody's dove deep into this game's mechanics so exact requirements are unclear). All this should minimise the risk of getting other medals, but sadly I think Bumpy Smurf is always a risk since you'll be crashing into other racers. Also, make sure you're giving yourself at least 1 minute 30 seconds for each lap (if you're waiting to be lapped you should be fine) to avoid Chrono Smurf, 'cause this game WILL give it to you at every chance ><