TechLookz

Xbox Live Gamerscore:

Levels Cleared - Normal (100):
Acquired when you finish all levels in Normal difficulty.

ZE Launcher:
Complete all missions on the Normal difficulty level to get the ZE Launcher.

Y20 Impulse:
Complete all missions on the Hard difficulty level to get Y20 Impulse.

Levels Cleared - Inferno (300):
Acquired when you finish all stages in Inferno difficulty.

Levels Cleared - Hardest (200):
Acquired when you finish all levels in Hardest difficulty.

Levels Cleared - Hard (150):
Acquired when you finish all levels in Hard difficulty level.

All Levels Cleared - Easy (50):
Acquired when you finish all levels in Easy difficulty.

PX50 Bound Shot:
Complete all missions on the Hardest difficulty level to get the PX50 Bound Shot.

Genocide Gun:
Complete all missions on the Inferno difficulty level to get the Genocide Gun.

Get All Weapons (200):
Acquired when you get all the weapons in the game.

Zero Laser Rifle:
Complete all missions on the Easy difficulty level to get the Zero Laser Rifle.