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