This trophy alone will take you roughly 4-5 hours, depending on how many tricks you
performed while playing the game. During chapter 9 we have to go back to Skater's Dream. Use this area
to perform tricks until the trophy pops. If you want to finish the story first, make a backup save in
the cloud, because finishing the game won't allow you to get back to this area and set the tricks
counter back to 0. To make things easier you can enable the Auto-Trick feature in the Accessibility
settings. This feature allows us to perform tricks by simply pressing

.
This may not be important for you, if you play an updated version, but I experienced a lot of freezes
while farming tricks for about 10 minutes. If that happens to you, wait for the next autosave, close the
application and restart the game. It was the only way to get rid of the freezes in the version I played.