Space Invaders Extreme Unlockables
Xbox 360 | Submitted by serslyUnlockable Modes
Endless Mode - Beat Extreme mode once.
Extreme Mode - Beat all 11 stages. This requires multiple playthroughs to go through all branching pathways.
Xbox 360 | Submitted by AchieverosAchievements
Combo Meal (10) - Destroyed at least 21 invaders in a row.
First Taste of Victory (10) - Won an online match for the first time.
Goliath Killer (10) - Defeated the first Boss Invader.
Hero of Nagoya (25) - Achieved 1 ROW using the Nagoya Attack technique.
Hot Streak (15) - Triggered at least 4 rounds of Fever Time.
Lieutenant Rank A (10) - Achieved Rank A at the end of a level.
Lone Wolf Victory (15) - Completed the game in Arcade Mode.
Space Commander Rank S (25) - Achieved Rank S 3 times.
Space Invader Veteran (20) - Won 25 online matches in VS Mode.
Sure Shot (10) - Defeated a wave of invaders without missing a shot.
Take That! (30) - Defeated a Boss Invader without missing a shot.
Team Victory (20) - Completed the game in Co-op Arcade mode.