Complete the following achievements to unlock Xbox Live Gamerscore points.

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