Nickelodeon Kart Racers 2: Grand Prix

The description is misleading because 10 tokens is the maximum you can have at once.

I couldn't do this legit because of the "squid" powerup which hits the racer in first place and always drops some coins from you, usually right before the finish line when you don't have time to collect any more.

But an easy workaround is to stay at the last place all the time and other racers won't bother you, just watch out for an occasional gnome or a track hazard :)

I was having a fair amount of trouble with this one until I unlocked the Crew Member Chameleon Brothers. This crew member allows you to take a hit and not lose any slime coins once every 10 seconds or so which is extremely helpful against the Jellyfish (Blue Shell) powerups that always hit you in the end.
I coupled this with a defensive chief like Sheldon, Susie or BowBow for added protection in the end.