Modify your kart for the first time.
Compete in the Arena for the first time.
Win a Cup in easy mode.
Win a victory lap.
Beat your record for first time.
Take down at least 3 opponents in a single race.
Co-operative special attack for the first time.
Use boost for the first time.
Activate the Slime valve for the first time.
Use a custom power up for the first time.
Win with all racers.
Win at the last second in Grand Prix Mode.
Activate the Slime in all the locations.
Use custom power ups for all the racers.
Win your first race.
Compete 10 times in each Arena mode.
Find a shortcut.
Put in the miles on the jetski.
Win a Cup in Expert mode.
Win all Cups in Expert mode.
Win 9 victory laps.
Unlock every upgrade in the store.
Win all Cups in easy mode.
Win a Cup in Normal mode.
Win all Cups in Normal mode.
Break 5 objects in a single race using boost.
Play as each racer at least once.
