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