Full list of all 12 Space Invaders Extreme achievements worth 200 gamerscore.
Defeated a wave of invaders without missing a shot.
Destroyed at least 21 invaders in a row.
Defeated the first Boss Invader.
Won an online match for the first time.
Achieved Rank A at the end of a level.
Completed the game in Arcade Mode.
Triggered at least 4 rounds of Fever Time.
Won 25 online matches in VS Mode.
Completed the game in Co-op Arcade mode.
Achieved 1 ROW using the Nagoya Attack technique.
Achieved Rank S 3 times.
Defeated a Boss Invader without missing a shot.