Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Hero of Venus (20 points): Escape Venusian Space.
Hero of Mercury (20 points): Get Empress Armada off planet Mercury.
Hero of Mars (30 points): Destroy the Axis Of Evil's ultimate weapon.
Weapon Specialist (15 points): Max out one weapon.
Well Defended (20 points): Buy Wicked Armor.
Perfect Skill (10 points): Max out one statistic.
Medallist (10 points): Get a medal on any level.
Overachiever (15 points): Get a gold medal on five different levels.
Perfectionist (20 points): Get a gold medal on ten different levels.
Multi Player (10 points): Complete any level in Online Multiplayer Mode.
Big Winner (20 points): Win three levels in 4-player Multiplayer Mode.
Smarter Than A Ball (10 points): Rescue Empress Armada without being crushed.