Here is the full list of all 37 Tony Hawk's Pro Skater 1 + 2 trophies - there are 19 bronze, 13 silver, 4 gold and 1 platinum.
Find every alien plushie.
Earn any 4 Medals on competition parks in Tours.
Unlock Bullring in THPS2 Classic.
Get hit by the Bull in Bullring.
Complete every goal in THPS2 Classic and gain all gold medals.
Complete a match in multiplayer.
Get hit by a vehicle on every map that features them.
Create a new park and upload it.
Spend $10,000 in the Skate Shop.
Find all Stat points for any Pro Skater.
Unlock Officer Dick.
Earn the "Veteran" Challenge Collection.
Earn the "Legend" Challenge Collection.
Complete all "Hard" Get-Theres.
Paint 100 surfaces in Graffiti across all playtime.
Achieve a High Score of 1,000,000+ on any classic Park.
Land a 1,000,000+ point combo.
Achieve a High Score of 10,000,000+ on any classic Park.
Complete all Gap collections.
Place 500 objects in CAP.
Earn 5,000,000 points in Trick Attack across all playtime.
Earn 2,000,000 points in Combo Mambo across all playtime.
Unlock School in THPS1 Classic.
Earn a Medal on any competition park in Tours.
Unlock Roswell in THPS1 Classic.
Complete every goal in THPS1 Classic and gain all gold medals.
Unlock School II in THPS2 Classic.
Create a skater using the CAS system.
Earn the "Rookie " Challenge Collection.
Reach Career level 10.
Land a 50,000+ point combo.
Bail a 100,000+ point combo.
Break 20 Panes of Glass.
Achieve a judge score of 99.9 on a competition run.
Complete all other Trophies!
Reach Career level 100.
Give 50 Letters in Horse.