Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
A Virus From Outer Space	Shoot down 300 UFOs.	30
Big Science	Use all power-ups.	70
Born, Never Asked	Destroy 150 basic turrets.	30
Closed Circuits	Push fourty buttons.	30
Dance Of Electricity	Kill fifty enemies disabled by the EMP.	30
Difficult Hour	Exit the reactor level with less than 1s before the reactor explodes.	30
Finnish Farmers	Kill 200 enemies with a Spreadshot.	30
From The Air	Kill 125 enemies with Homing Missiles.	30
If You Can't Talk About It, Point To It	Crash into the star without any fuel.	30
Let X=X	Reach 10000 score in Arcade.	100
Looking For You	Destroy 150 asteroids in the solar system.	50
O, Superman	Kill 25 enemies while under the effect of Overload.	30
Red Map	Complete all six planets in four solar systems.	50
Say Hello	Retrieve hundred rescue pods.	100
The Mailman's Nightmare	Kill 25 enemies with a Railgun shot.	100
Violin Solo	Complete all singleplayer missions.	100
Violin Walk	Complete the first solar system without losing a life.	100
Walk The Dog	Kill an enemy by leading it to the laser cannon.	30
Walking And Falling	Complete all six types of planets.	30