Here is the full list of all 31 Zombie Kill of the Week - there are Reborn achievements.
Go see your friends!
And still going?
Get promoted to rank 30.
Get 5 meats in a single game from the fridge.
Get a shotgun, and make 20 zombies crawl in front of you.
You have wasted 5 hours of your life.
Slaughter 10 000 zombies in total.
Survive 4 minutes in RedSnow. (Challenge mode)
Survive 4 minutes in Night At The Mall. (Challenge mode)
Survive 4 minutes in Arise. (Challenge mode)
Survive 4 minutes in Area 73. (Challenge mode)
Own atleast 5000$ in one match
Get yourself killed with a grenade. Dumbass.
Kill 15 zombies with a katana, and 25 with saw in one match.
Slaughter 5000 zombies in total.
Encounter all 3 tanks, and get them killed.
Find the fridge and make it disappear. Repeat 3 times.
Survive 4 minutes in Abandoned Hospital. (Challenge mode)
You have played ZKW for an hour.
Survive 4 minutes in Homerun. (Challenge mode)
Slice 53 zombies in one match.
Fight your way to round 20.
Grill 50 zombies with flame in a single match.
Open all areas in a single match.
Get promoted to rank 10.
Kill the zombie bear before he takes your money.
Get the GiGaGirlGannon, and kill 10 zombies within 10 seconds.
Help your friend in need.
Stand still for 30 seconds, wondering about your life.
Get 100 headshots in one match.
Zombies are not ment to fly.