Multi-player levels:
Earn a bronze or better medal in a single player level to unlock it in multi-player mode.
Silver medal bonuses:
Unlock the following bonuses by earning the corresponding numbers of silver medals:
BONUS – SILVER MEDALS
Zombie Vision – 1 silver medal.
Art – 4 silver medals.
Sketch Vision – 12 silver medals.
Sepia Vision – All silver medals.
Event buttons:
Use the “Event” button on the following stages to get the corresponding results:
STAGE – RESULT
Woods – Rain slows down zombies; torch is extinguished and cannot set zombies on fire, but can still scare them; zombies that are already on fire remain burning.
Cemetery – Divine ray kills zombies.
Suburbia – UFO abducts zombies.
Drive-In – Plays music that makes zombies dance briefly.
Military Base – Line of TNT drops down.
Secret Lab – Three lasers rotates around the middle of the level that will kill everything.
Trophies:
Bronze trophies
Brain Surgery – Suck 100 Brains
d6 Admires You – Get All Gold medals.
d6 Commends You – Get All Bronze medals.
d6 Respects You – Get All Silver medals.
Dynami-Te-He – Blow up 1000 Zombies.
Extinction – Kill 100,000 Zombies.
Graduation – Complete Zombie Academy.
Hot To Trot – Last 30 seconds with 50 zombies on fire.
Murder On The Dance Floor – Send 1000 Zombies Dancing
Paint The Town Red – Fill the screen with the maximum amount of blood on any level.
Red Shirt – Kill the away team Zombie.
Texas Style – 100 Chainsaw Combos.
Tourist – All Arcade levels unlocked.
Silver Trophies
Friend of Bruce – All levels unlocked.
Gold Trophies
Friend of d6 – All Developer medals.
“In Space” trophies:
Bronze trophies
No Time To Bleed – Get 100 Gatling Gun combos on the Engine Room.
Transporter Accident – Transport 1000 Zombies off the Mothership Bridge.
Silver trophies
Top Ten – Beat ten of your friends in any leaderboard on either the Engine Room or Mothership Bridge.
Extreme Survivor – Survive 5 minutes with one life in Survival mode on Extreme difficulty on either Engine Room or Mothership Bridge.
“Zombie Sushi” trophies:
Bronze trophies
This Is My Boomstick – 100 Shotgun combos on either the Shrine or Castle.
1.21 Jigawatts – Electrify 1000 Zombies on the Shrine.
Silver trophies
Top Ten – Beat ten of your friends in any leaderboard on either the Shrine or Castle.
Extreme Survivor – Survive for 5 minutes with one life in Survival mode on Extreme difficulty on either the Shrine or Castle.