Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Across the Border	Push down the egg.	30
After All	Complete all challenges in a single player mode.	90
Caught in a Trap	Kill twenty enemies in rapid succession.	30
Danger Ahead	Kill fifteen enemies with a single shot from a deadly web.	90
Don't Bring Me Down	Kill five enemies with Grenade bug explosion.	90
Everyone's Born to Die	Kill 2000 Bugs.	90
Hello My Old Friend	Resurrect an ally in coop mode.	10
I'm Alive	Reach 2000 points in arcade mode.	90
In For The Kill	Kill ten Thunderbugs in rapid succession.	30
In My Own Time	Survive for 180 seconds.	90
Look at Me Now	Reach 4000 points in arcade mode.	90
The Fall	Prevent hundred eggs from hatching.	90
Time of Our Life	Complete all challenges in coop mode.	90
Wild West Hero	Reach 6000 points in arcade mode.	90