Kill 20 zombies

Kill 25,000 zombies

Kill 500,000 zombies

Kill 10 bosses

Kill 250 bosses

Critical 500 times

Kill 1,000 bosses

Critical 10,000 times

Critical 250,000 times

Complete 250 missions

Complete 50 missions

Complete 1,500 missions

Shoot 1,000 bullets

Shot 2,500,000 bullets

Shoot 150,000 bullets

Win 25 battles with > 75% health

Win 50 battles with > 75% health

Multi-kill 250 times

Win 500 battles with > 75% health

Multi-kill 5,000 times

Multi-kill 100,000 times

Reach combo 200

Reach combo 50

Reach combo 500

Get hit 250 times

Get hit 100,000 times

Get hit 5,000 times

Reach rank 10

Reach rank 25

Blow up 250 zombies

Reach rank 60

Blow up 10,000 zombies

Blow up 250,000 zombies

Break 1,000 ice block

Break 50 ice block zombies

Break 10,000 ice block zombies

Burn 100 zombies

Burn 100,000 zombies

Burn 5,000 zombies

Kill 50 zombies with melee

Kill 100,000 zombies with melee

Kill 5,000 zombies with melee

Request 25 backups

Request 100 backups

Spin 10 times

Request 750 backups

Spin 250 times

Spin 1,500 times

Survive 8 minutes in Lone Survivor

Survive 4 minutes in Lone Survivor

Survival 16 minutes in Lone Survivor

Upgrade a gun to level 12

Upgrade a gun to level 28

Upgrade a gun to level 20

Train a hero to level 12

Train a hero to level 20

Kill 500 zombie with pistol

Train a hero to level 28

Kill 5,000 zombies with pistol

Kill 100,000 zombies with pistol

Kill 10,000 zombie with rifle

Kill 500 zombies with rifle

Kill 250,000 zombies with rifle

Kill 500 zombie with sniper

Kill 10,000 zombies by sniper

Kill 5,000 zombie with sniper

Protect 10 civilians from zombies

Protect 50 civilians from zombies

Win 10 defend missions

Protect 150 civilians from zombies

Win 50 defend missions

Win 150 defend missions

Ride 250,000 meter

Ride 10,000 meter

Ride 1,250,000 meter