100,000 Zombies killed.

Fill the screen with the maximum amount of blood on any level.

Kill the away team Zombie.

Last 30 seconds with 50+ zombies on fire.

1000 Zombies sent dancing.

100 Brains sucked.

100 Chainsaw Combos.

1000 Zombies blown up.

Complete Zombie Academy.

All Arcade levels unlocked.

All levels unlocked.

All Bronze medals.

All Silver medals.

All Gold medals.

All Developer medals.