Complete level 1.
Complete level 3
Complete level 5
Complete level 10
Complete level 15
Complete level 20
Complete level 25
Get 3 stars in a level
Get 15 stars in a week
Get all stars on all levels
Eat a ghostburger.
Eat 50 burgers.
Get hit by 100 cars.
Pet the cat 200 times.
Achieve a Crossing Combo of 15.