Here is the full list of all 29 LEGO Star Wars II: The Original Trilogy achievements worth 1,000 gamerscore.
Complete the LEGO City bonus level.
Complete all of the Bounty Hunter missions
Complete 100% of the game!
Play through to the end of the Secret Plans level without dying once!
Play through to the end of the level without dying once!
Play through to the end of the Mos Eisley Spaceport level without dying once!
Play through to the end of the Rescue the Princess level without dying once!
Play through to the end of the Death Star Escape level without dying once!
Play through to the end of the Rebel Attack level without dying once!
Play through to the end of the Hoth Battle level without dying once!
Play through to the end of the Escape from Echo Base level without dying once!
Play through to the end of the Falcon Flight level without dying once!
Play through to the end of the Dagobah level without dying once!
Play through to the end of the Cloud City Trap level without dying once!
Play through to the end of the Betrayal over Bespin level without dying once!
Play through to the end of the Jabba's Palace level without dying once!
Play through to the end of The Great Pit of Carkoon level without dying once!
Play through to the end of the Speeder Showdown level without dying once!
Play through to the end of The Battle of Endor level without dying once!
Play through to the end of the Jedi Destiny level without dying once!
Play through to the end of the Into the Death Star level without dying once!
Complete 80% of the game.
Complete all levels of Episode VI in Story mode.
Complete 60% of the game.
Complete all levels of Episode V in Story mode.
Complete 40% of the game.
Complete all levels of Episode IV in Story mode.
Complete 20% of the game.
Complete Secret Plans, the first level of Episode IV