Here is the full list of all 48 LEGO Star Wars III: The Clone Wars achievements worth 1,000 gamerscore.
Complete The Hidden Enemy.
Complete the game to 100% (Single Player Only)
Using the Radio ability, command troops 50 times.
Collect all Gold bricks. (Single Player Only)
On a flying level, land a space ship whilst controlling Lando Calrissian.
Collect all the minikits. (Single Player Only)
Convert every system to CIS. (Single Player Only)
Unlock/purchase all 'Droid' characters. (Single Player Only)
Unlock/purchase all 'Clone' characters. (Single Player Only)
True Jedi in every level. (Single Player Only)
Using the Force, take control of a Super Battle Droid and destroy 50 other Droids.
Collect all Red Power Bricks. (Single Player Only)
Free all villains from the Resolute brig. (Single Player Only)
Convert every system to the Republic. (Single Player Only)
Defeat Anakin with Count Dooku
Use Yoda to defeat 5 enemies with one lightsaber throw.
Overheat and destroy 50 gold LEGO bricks.
Complete all Bounty missions. (Single Player Only)
Have all your party members disguised as Senate Commandos in Hostage Crisis. (Story mode only)
Hijack 20 enemy units in Ground Battles.
Complete Zillo Beast.
Complete Hostage Crisis.
Complete Castle of Doom.
Land on the Invisible Hand.
Complete Grievous Intrigue.
Complete Rookies.
Destroy 100 Droids with the Clone Chain-gun.
Complete Lair of Grievous.
Complete Destroy Malevolence.
Complete Shadow of Malevolence.
Complete a story level without dying (and no invincibility cheat).
Complete Duel of the Droids.
Complete Legacy of Terror.
Complete Weapons Factory.
Deploy 500 Clones.
Win 3 consecutive Arcade Mode Battles.
Complete Defenders of Peace.
Complete Jedi Crash.
Complete Gungan General.
Destroy an enemy building with a proton torpedo
Complete Liberty on Ryloth.
Complete Innocents of Ryloth.
Complete Storm Over Ryloth.
Complete: 5 Loop the loops, 5 Back flips, 5 corkscrews.
Complete Blue Shadow Virus.
Complete Ambush.
Complete Battle of Geonosis.
Complete Geonosian Arena.