Try all the game modes in Single Player Race

Create a Mod in Mod Studio

Heart 3 authors

Build and save a level with more than one player with the thermometer more than 30% full

Harvest some leather.

Open your inventory.

Use photo mode in a race, in a studio, or in the ModSpot

Win the Mayhem Tour

Create a kart in Kart Studio

Fill your boost meter

Build and save a level with the thermometer more than 30% full

Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.