Here is the full list of all 46 Tony Hawk's Proving Ground achievements worth 1,000 gamerscore.
Completed all Line Goals at SICK
Completed all Classic Goals at SICK
Found all Gaps on gap list.
Complete all Skill Challenges at SICK.
Found all the cash spots.
Made a Video Edit worth 20,000 Points
Completed all Photo Goals at AM ranking or better.
Completed all Photo Goals at PRO ranking or better.
Completed all Photo Goals at SICK
Completed all Line Goals at AM ranking or better.
Completed all Line Goals at PRO ranking or better.
Completed all Lifestyle Uber Goals.
Jeff's Rigging episode completed.
Completed all goals at AM ranking or better.
Completed all goals at PRO ranking or better.
Completed all Skill Challenges at AM ranking or better.
Completed all Skill Challenges at PRO ranking or better.
Completed all Classic Goals at PRO ranking or better.
Completed all Classic Goals at AM ranking or better.
Modified all environment areas.
Upgraded all skater skills.
Completed all Hawk-man Goals at AM ranking or better.
Completed all Hawk-man Goals at PRO ranking or better.
Completed all Hawk-man Goals at SICK.
Purchased all Skater Gear.
Complete all Film goals at SICK
Completed all Film Goals at PRO ranking or better.
Completed all Film Goals at AM ranking or better.
Daewon and Rodney's Modify the World episode completed
Bam's Climbing episode completed.
Dustin's Skate Checking episode completed.
Achieved 'Team Built' Game Milestone.
Lance's Bowl Skating episode completed.
Achieved 'Build Your Team' Game Milestone.
Knocked baddie 150 feet.
Stevie's Nail the Manual episode completed.
Achieved 'Get Your Own Skate Shoe' Game Milestone.
Achieved 'Get Your Own Skate Deck' Game Milestone.
Mike V's Go Epic episode completed.
Achieved the 'Join Team' Game Milestone.
Bob's Nail the Grab episode completed.
Arto's episode completed.
Achieved the 'Sponsored' Game Milestone progress.
Accumulate 1000 games played.
Win all 5 rounds in a match with at least 4 gamertags in the room.
Win enough wagers to accumulate $100,000 in winnings. Ranked Match only.