Here is the full list of all 27 Tony Hawk: RIDE trophies - there are 12 bronze, 8 silver, 6 gold and 1 platinum.
Unlock all of the other trophies
Complete the Training Test challenge in Street Training
Unlock Tokyo in Casual
Unlock Tokyo in Confident
Unlock Tokyo in Hardcore
Venice Beach, Trick Session: Score 10,000 Points in one combo
LA River, Speed Session: Complete in under 1'30 without jumping
Lower Wacker Drive, Speed Session: Complete in under 1'00 with 200 ft of Manuals
Loop Plaza, Challenge Session: Activate Signature Moment during Challenge #3
Central Park, Speed Session: Collect 60 seconds worth of time bubbles
Barcelona, Challenge Session: Complete all challenges without bailing
Toledo, Trick Session: Score 20,000 Total Points in the camera spots
Frankfurt Terminal, Speed Session: Complete in under 1:45 without collecting any time bubbles
Boom X2 TH Go Show: Get to the end without Bailing
Venice Beach Half-Pipe: Score 10,000 Points worth of Grabs
Boom Boom Huck Jam: Fire off the Signature Moment within 20 seconds of session start
Central Park Half-Pipe: Perform 10 Inverts
Barcelona Half-Pipe: Perform 5 Spine Transfers
Quiksilver 80s Vert: Fire off the Signature Moment using only Stalls
Quiksilver 80s Vert: Channel the Gap 5 Times in one session
Boom X2 Vertical U-Ramp Go: Complete without bailing
Vans Downtown Showdown: Complete level successfully
Back to the Banks: Complete level successfully
Party Mode, Challenge Session: Rematch 10 times
Party Mode, éS Game of SKATE: Over 15 letters given out in one game
Do one continuous Manual of 400 feet
Half-Pipe: Do 5 different Grab Tricks in one session