Fully upgrade a single kart aspect.
Run over an opponents fallen body.
Use an EMP 20 times successfully.
Hose 20 oldies with the Uzi.
Expertly explode 20 pensioners with the use of a rocket.
Slip up 20 peoples Sunday drive with some oil.
Successfully use a shield to block 20 attacks.
Boost without crashing 20 times.
Knock 5 skaters off the road.
Get gold in all races in the village.
Get gold in all races in the town.
Get gold in all races in the farm.
Get gold in all races in the graveyard.
Get gold in all races in the showdown.
Get 1 Crazy Granddad item.
Get taken out by a UFO laser.
Complete story mode as The Grim Reaper.
