Pull over while the police are in 'pull over' mode, then drive away during the ticketing cutscene.

Evade the police successfully when they are in pursuit.

You completed all 10 package delivery jobs.

You caught 20 criminals through the police computer.

You unlocked all the islands.

Complete all levels in The Savannah

Place a sticker

Complete a level with more than one player

You completed the mission "Roman's Sorrow".

Win a race by a margin of less than 0.1s

Execute 100 successful barrel rolls.

You were invited into your girlfriend's house.