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
Beat every challenge/Unlock RAD mode
Set a score on every Spot
Unlock every Spot
Beat every Amateur challenge
Find the 10 members of the Roll7 dev team
Finish every Amateur career level
Unlock Titan Sky
Finish any Pro level with every landing, grind and launch perfect
Achieve a total of 100 Perfect Revert-Manuals
Achieve a total of 50 Perfect Reverts
Achieve a total of 100 Grind-Switches
Complete every level in Skatepark
Achieve a total of 1000 Perfect Grinds
Unlock Carnival of the Dead
Unlock Gunmetal Creek
Achieve a total of 500 Perfect Manuals
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
Perform one of every trick
Compete in the Daily Grind
Unlock Olliwood