250 Melee Kills on a run.

500 Ranged Kills on a run.

250 Fire Kill on a run.

Break 100 Windows.

Kill 1000 Zombies on a single run.

Explode 100 Barrels.

Kill 10,000 Zombies.

Complete the campaign.

Collect 1000 Scrap.

Complete all survival levels.

Survive for 10 minutes on a survival run.

Reach max level.

Collect 2500 Pickups.

Unlock 20 weapons.