Here is the full list of all 50 Tony Hawk: SHRED trophies - there are 36 bronze, 11 silver, 2 gold and 1 platinum.
Unlock all other trophies
Online Mode: Win a Scoring Spots session
Online Mode: Win a Point Rush session
Online Mode: Win a Trick session
Online Mode: Win a Challenge session
French Alps: Complete a Trick Mode session in French Alps as Orgarth (SP)
Whistler Mountain: Complete a Point Rush session in Whistler Mountain as Orgarth (SP)
New Orleans: Complete any session in New Orleans as Officer Richard (SP)
Challenge Mode: Complete 15 total Insane Challenges
Challenge Mode: Complete all Videographer Challenges
Acquire all Stars in the Game on any Navigation Setting
Acquire all Stars in the Snowboard Tier on any Navigation Setting
French Alps: Acquire all 16 Stars
Complete each session type in each level on any Navigation Setting (Excluding Free Ride) (SP)
Acquire all 4 Stars on Beijing Big Air & all 4 Stars on Beijing Halfpipe
Whistler Mountain: Acquire all 16 Stars
Unlock every level in the game
Training Mode: Complete every Lesson in Snow Training on the Casual Setting
Tricktionary: Perform every non-Signature Snowboarding Trick at least once (SP)
Acquire all Stars in the Skateboard Tier on any Navigation Setting
Survival Mode: Survive the Huckjam Park Combo Level
Huckjam Park: Complete any session in Huckjam Park as Xzrrt (SP)
Huckjam Park: Acquire all 12 Stars on any Huckjam Park level
Santorini: Acquire all 16 Stars
Santorini Trick Mode: Score 100,000 points without using grinds (SP)
Wallows: Acquire all 16 Stars
Wallows: Scoring Spots: Score 1,000,000 total points (SP)
Acquire all Stars in the Pro Trial Tier on any Navigation Setting
Big Air Pro Trial: Perform two 360° Spins in the same Big Air Pro Trial session (SP)
Manual Pro Trial: Maintain a continuous Manual for 500 feet on any Manual Pro Trial (SP)
Grind Pro Trial: Perform 10 Grind Transfers in a session on any Grind Pro Trial (SP)
Training Mode: Complete every Lesson in Skate Training on the Casual Setting
Tricktionary: Perform every non-Signature Skate Trick at least once (SP)
Tricktionary: Perform 250 total Grabs (SP)
Complete a session on each Navigation Setting (without leaving game - SP)
Unlock all Navigation Settings
Morocco: Acquire all 16 Stars
Morocco: Complete any session in Morocco as Seadog O' Banion (SP)
Melbourne: Acquire all 16 Stars
Tricktionary: Grind at least 500 feet in every type of Grind (Parallel, Slide, Angled) (SP)
Melbourne: Point Rush: Finish with a score of at least 75 without collecting any Point Bubbles (SP)
Enter your custom initials for the Leaderboard
Complete a session in Regular Stance & a session in Goofy Stance (without leaving game - SP)
Tricktionary: Visit the Tricktionary for the first time
New Orleans: Acquire all 16 Stars
Tricktionary: Perform 500 Ollies (SP)
New Orleans: Scoring Spots: Perform the bonus task of all 5 Scoring Spots (SP)
Unlock a new level
Complete a session on any Navigation Setting (Excluding Free Ride) (SP)
Calibrate the board