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Ion Assault



Complete each achievement to receive the allotted gamerscore.

UnlockableHow to Unlock
Complete a stage without collecting a Power-Up.Abstinence (10)
Complete the cooperative campaign.Allied Victory (40)
Destroy five asteroids at once.Battleship (10)
Destroy seven asteroids at once.Destroyer (10)
Collected enough Score Orbs in a single run to get two extra lives at once.Field Medicine (15)
Finish a stage in less than 90 seconds.Hyperspeed (15)
Score 1,500,000 points in a single game.Jackpot (15)
Score more than 500,000 points in a single game.Payoff (10)
Destroy 50 big obstacles in a single game.Rock 'n' Roll (15)
Survive 3 stages without dying once.Survivor (10)
Complete the single player campaign.Triumph (40)
Complete a whole sector without dying once.Untouchable (10)

Contributed By: Guard Master.