Here is the full list of all 10 Skate City achievements.
Finish the tutorial that starts up on the game’s first launch
Crash 500 times in any combination of game modes
Complete all 30 goals in endless skate in LA
Complete all 30 goals in endless skate in Oslo
Complete all 30 goals in endless skate in Barcelona
Complete all 90 goals in endless skate across the 3 cities
Complete all the challenges in LA
Complete all the challenges in Oslo
Complete all the challenges in Barcelona
Finish all the challenges in LA, Oslo and Barcelona