Last 30 seconds with 50+ zombies on fire.
Fill the screen with the maximum amount of blood on any level.
100,000 Zombies killed.
All levels unlocked.
All Bronze medals.
All Silver medals.
All Gold medals.
All Developer medals.
Get 100 Gatling Gun combos in the Engine Room.
Transport 1000 Zombies off the Mothership Bridge.
Beat ten of your friends on any leaderboard in an In Space level.
Survive 5 minutes with one life in Survival mode on Extreme difficulty in an In Space level.
100 Shotgun combos in a Zombie Sushi level.
Kill the away team Zombie.
Kill 1000 Zombies with the lightning strike.
Beat ten of your friends on any leaderboard in a Zombie Sushi level.
Survive 5 minutes with one life in Survival mode on Extreme difficulty in a Zombie Sushi level.
1000 Zombies sent dancing.
100 Brains sucked.
100 Chainsaw Combos.
1000 Zombies blown up.
Complete Zombie Academy.
All Arcade levels unlocked.
999
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