Drops: if you kill zombies or bosses or special enemies these might spawn
Carpenter: This is the worst drop it will give you a free $200 and will rebuild all the barriers on the map
Nuke: This will kill all the zombies on the map and will give you $400
Death machine: This will give you a death machine which you can use until the timer runs out or you swap weapons
Double Points: This will make getting points a lot faster and it works by well if you shoot a zombie without double points it's 10 with double points it's 20
Fire Sale: This will make the box spawn in all locations and it will make the box and gobble gum machine cost $10
Max Ammo: This will refill all the ammo in your guns so you don't have to buy any guns you don't want or spend money on the ammo