Here is the full list of all 27 OlliOlli2: Welcome to Olliwood achievements.
Obtain all Trophies
Compete in the Daily Grind 7 times
100% Completion
Finish every level in RAD mode
Find the 10 members of the Roll7 dev team
Set a score on every Spot
Beat every challenge/Unlock RAD mode
Unlock every Spot
Perform one of every trick
Finish any Pro level with every landing, grind and launch perfect
Beat every Amateur challenge
Finish every Amateur career level
Achieve a total of 100 Perfect Revert-Manuals
Achieve a total of 50 Perfect Reverts
Achieve a total of 100 Grind-Switches
Unlock Titan Sky
Complete every level in Skatepark
Unlock Carnival of the Dead
Achieve a total of 1000 Perfect Grinds
Achieve a total of 500 Perfect Manuals
Unlock Gunmetal Creek
Achieve a total of 100 Perfect Launches
Get your first 1,000,000+ combo
Unlock Curse of the Aztec
Achieve a total of 100 Perfect Landings
Compete in the Daily Grind
Unlock Olliwood