Survive the first wave

Survive the first two waves without firing a gun

Survive until the Twentieth Wave

Explore the map by opening all the doors

Kill 10 zombies simultaneously with just one grenade

Kill 5 zombies during a game before they crawl completely out of the earth

Stay the first 5 waves in the starting building

Avoid all damage taken in the first 10 Waves

Collect as many points until you have 10,000 in a row

Survive until the Fifth Wave