Here is the full list of all 38 LEGO Indiana Jones 2: The Adventure Continues achievements worth 1,000 gamerscore.
Complete the game to 100% (Single Player Only)
Complete all Story Mode Levels in Raiders Hub.
Complete all Story Mode Levels in Temple of Doom Hub.
Complete all Story Mode Levels in Crusade Hub.
Complete all Story Mode Levels in Skull 1 Hub.
Complete all Story Mode Levels in Skull 2 Hub.
Destroy Indy 3 times with Mac.
Fire a Bazooka 100 times.
Destroy 100 enemy vehicles.
Create a customised character.
Complete all Story Levels in Quick Play modes. (Single Player Only)
Create a validated Builder level.
Use Scholar access 10 times.
Complete Hangar 51 in under 5 minutes.
Defeat 50 Russians with Mutt.
Destroy Indy with Spalko.
Complete all Bonus Levels in Raiders Hub.
Find all the Artifacts in the game. (Single Player Only)
Edit a Bonus level in the Builder.
Complete all Bonus Levels in Crusade Hub.
Complete all Treasure Mode Levels in Crusade Hub.
Unlock all of the enemies in the game. (Single Player Only)
Unlock all of the vehicles in the game. (Single Player Only)
Complete all Bonus Levels in Skull 2 Hub.
Complete all plane races. (Single Player Only)
Complete all Bonus Levels in Temple of Doom Hub.
Complete all Treasure Mode Levels in Temple of Doom Hub.
Complete all Bonus Levels in Skull 3 Hub.
Complete all Treasure Mode Levels in Skull 3 Hub.
Complete all Treasure Mode Levels in Skull 2 Hub.
Complete all Bonus Levels in Skull 1 Hub.
Complete all Treasure Mode Levels in Skull 1 Hub.
Complete all Treasure Mode Levels in Raiders Hub.
Unlock the Interdimensional Being. (Single Player Only)
Complete the Builder Tutorial levels.
Complete a "Build Your Own Adventure".
Unlock the Grail Knight. (Single Player Only)
Complete all Story Mode Levels in Skull 3 Hub.