Brainless
Not unlocked yetDie for the first time
Lost My Mind
Not unlocked yet
Medic!
Not unlocked yetComplete Hospital on any difficulty
Ignored The Signals
Not unlocked yetComplete City on any difficulty
My Way Or The Highway
Not unlocked yetComplete Highway on any difficulty
Smelled The Fresh Air
Not unlocked yetComplete Countryside on any difficulty
Taken
Not unlocked yetComplete Crash Site on any difficulty
It Came From Earth...
Not unlocked yetComplete Planet on any difficulty
They Walked Into My Gun
Not unlocked yetComplete all Survival levels on Easy
Jerrycan
Not unlocked yetComplete all Survival levels on Medium
Hardened
Not unlocked yetComplete all Survival levels on Hard
Insane In The Membrain
Not unlocked yetComplete all Survival levels on Insane
Pistolero
Not unlocked yetBuy all Pistol upgrades in one game
Hunting Season
Not unlocked yetBuy all Shotgun upgrades in one game
Rain Of Bullets
Not unlocked yetBuy all Machine Gun upgrades in one game
Facemelter
Not unlocked yetBuy all Plasma Gun upgrades in one game
Science!
Not unlocked yetBuy all Laser Gun upgrades in one game
Had A Blast
Not unlocked yetBuy all Rocket Launcher upgrades in one game
No-Brainer
Not unlocked yetReach 50x multiplier
All Together Now
Not unlocked yetReach 100x multiplier
C-c-c-combo!
Not unlocked yetReach 150x multiplier
Wipeout
Not unlocked yetKill 1,000 aliens
Space Janitor
Not unlocked yetKill 10,000 aliens
Total Annihilation
Not unlocked yetKill 100,000 aliens