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Destroy an enemy ship in level.
Destroy 2 enemy ships in level.
Destroy 3 enemy ships in level.
Destroy boss ship to collect power up.
Complete a level by destroying all enemy ships.
Collect multi shot power up.
Collect shield power up.
Collect power shot power up.
Complete 2 levels in game.
Complete 3 levels in game.
Collect combo of 2 or more power ups.
Collect all trophies in game.