Full list of all 18 Trials HD achievements worth 300 gamerscore. It takes around 20-25 hours to unlock all of the achievements in the base game on Xbox 360.
The base game contains 12 achievements worth 200 Gamerscore, and there are 2 DLC packs containing 6 achievements worth 100 Gamerscore.
The player has completed all hard tracks.
The player has unlocked every track in the game.
The player has completed Groundhog Returns faultlessly without changing the rider's posture.
Get a strike in a midnight bowling event.
The player has completed Container Rush without releasing the throttle even for an instant.
Skyrocketing in Stock Market is only temporary. Be prepared for the fall and the big bang.
The player has completely destroyed the motorcycle and broken every single bone in a single crash.
The player has made at least 5 Gold-level performances.
The player has unlocked the first tournament.
The player has saved his/her first custom track.
The player has completed the Ultimate Endurance tournament without any faults.
The Player has completed all Extreme tracks.
Catch a ride and surf on top of a lowrider in Dangerous Ride. Can you go the distance?
Bounce 5 trampolines in succession in Skyway to reach new heights.
Which box to choose and when to bailout?
Used a jetpack to sneak into the Secret Base undetected.
The player has completed 'Barrel of Laughs' faultlessly using the Micro Donkey bike.
The player has completed all of the Big Thrills tracks.