Full list of all 10 Galaga Legions DX achievements worth 200 gamerscore. It takes around 12-15 hours to unlock all of the achievements on Windows Phone.
Scored 5,500,000 points in Championship!
Cleared all areas on Expert difficulty!
Cleared Championship!
Scored 3,300,000 points in Area 3!
Cleared Area 3!
Scored 2,500,000 points in Area 2!
Cleared Area 2!
Scored 3,000,000 points in Area 1!
Area cleared without losing a single fighter!
Cleared Area 1!