Here is the full list of all 20 Angry Birds Star Wars (Windows) achievements worth 200 gamerscore.
Shoot three pigs with a single blaster shot
Fail level 10 times with one pig left
Complete 10 levels with one bird
Pop 300 stormtroopers
Restart level 100 times
Smash 50 blocks with saber
Deflect three lasers with saber
Stormtrooper shoots another trooper
500 blocks smashed with saber
2000 blocks smashed with saber
2000 blocks threw with force
1000 blocks smashed with laser
500 blocks smashed with Pilot
300 blocks smashed with Chewbacca
Angry Birds Star Wars played for 5 hours
Angry Birds Star Wars played for 15 hours
Angry Birds Star Wars played for 30 hours
5000 birds launched
Stormtrooper popped with Tie Fighter's wing
Same turret shot Chewbacca 6 times