Complete any Sector on the Hard difficulty setting.
Complete any Sector by playing with a friend in co-op mode.
Get all three hidden Crowns in any Sector.
Defeat 10 enemies or more using one Laser shot.
Defeat 50 enemies using the Charge Attack.
Receive the highest ranking Medal on any Sector.
Defeat the final Boss.
Complete all three Stages.
Complete any Sector without getting hit by a single shot.
Complete all Sectors in one Stage.
Complete your first Sector.
Use each weapon one time.
String together a Combo of 100 points or more.
Complete any Sector without firing a single shot. (Hint: Use the Charge Attack!)
Complete any Sector on the Brutal difficulty setting.
