Here is the full list of all 36 Tony Hawk's Pro Skater 1 + 2 achievements.
Spend $10,000 in the Skate Shop.
Earn any 4 Medals on competition parks in Tours.
Achieve a judge score of 99.9 on a competition run.
Earn a score of 10,000,000 in any park in a 2 minute session or single combo. Game Mods must be disabled.
Land a 1,000,000+ point combo.
Achieve a High Score of 1,000,000+ on any classic Park.
Unlock School II in THPS2 Classic.
Complete every goal in THPS1 Classic and gain all gold medals.
Paint 100 surfaces in Graffiti across all playtime.
Unlock Roswell in THPS1 Classic.
Earn the "Rookie " Challenge Collection.
Create a new park and upload it.
Complete a match in multiplayer.
Create a skater using the CAS system.
Earn a Medal on any competition park in Tours.
Bail a 100,000+ point combo.
Reach Career level 10.
Land a 50,000+ point combo.
Unlock School in THPS1 Classic.
Find every alien plushie.
Unlock Bullring in THPS2 Classic.
Get hit by the Bull in Bullring.
Complete every goal in THPS2 Classic and gain all gold medals.
Get hit by a vehicle on every map that features them.
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.
Reach Career level 100.
Give 50 Letters in Horse.
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.
Break 20 Panes of Glass.