Finish 75 quests cumulatively.

Use a hammer to kill a series of 15 zombies without taking damage.

Kill 5 Infected in a row with a single blow.

Survive 15 consecutive waves using the analog combat controls.

Kill 250 zombies with modified weapons.

Sever 100 limbs.

Set 10 zombies on fire simultaneously.

Kill 150 enemies using Analog Fighting controls.

Use a large medkit to heal an injury of 5% or less.

Complete act I.

Play with 10 different co-op partners for at least 15 minutes each.

Survive wave 30.

Create weapons to rival the gods of fire or thunder.