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