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