Shotgun
Not unlocked yetBuy the Shotgun gun.
Shredder
Not unlocked yetKill a Shredder enemy.
SMG
Not unlocked yetBuy the SMG gun.
Track Shooter
Not unlocked yetKill a Track Shooter enemy.
Trucker
Not unlocked yetUnlock the Trucker hero.
Turtle Boss
Not unlocked yetDefeat the Turtle Boss.
TwinShot
Not unlocked yetBuy the TwinShot gun.
Worm
Not unlocked yetKill a Worm enemy.
Zombie
Not unlocked yetKill a Zombie enemy.
Zombie Runner
Not unlocked yetKill a Zombie Runner enemy.
Zombie Shooter
Not unlocked yetKill a Zombie Shooter enemy.
Zombie Turtle
Not unlocked yetKill a Zombie Turtle enemy.