How do you unlock the yeti zombie - PopCap Games Plants Vs. Zombies

what is code in plant vs zombies

there is not zombie mode on modern warfare 2 its on call of duty black ops

appearance for the lawn mowers-trickedout
weird glasses-future
mustaches-mustache
dancing-dance
candy falls after zombies dies- pinata
daisies falls after zombies dies-daisies
weird zombies noise-zubhkir or subhkir

Plants vs Zombies Cheat Codes:
Code ' Effect
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tohot - For infinite Sun.
future - This gives a zombie futuristic shades.
sukhbir - Toggles the zombie's call for brains-sound.
dance - Zombies dance.
Mustache - Mustaches for zombie.
trickedout - Alternate Lawn Mower
pinata - when a zombie dies, get a shower of candy.
daisies - Once Zombies killed, they leave small daisies behind.

Tips for Achievements of Plants and Zombies:
The achievements below can be unlocked by completeing the task listed for them.
How to unlock ' Unlockable
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Wisdom Tree grow up to 100 feet. - Towering Wisdom
Only with a single cherry bomb you can eliminate 10 zombies. - Explodonator
Get the golden sunflower trophy. - Nobel Peas Prize
Mustache Mode. - Ask Me About Mustache Mode
Get all 49 plants. - Morticulturalist
Get to a streak of 15 in Vasebreaker Endless. - China Shop
For hypnotizing the lead dancer zombie. - Walk This Way
Top secret zombie is discovered. - Cryptozombologist
Crush a zombie using a potato mine. - Spudow!
Zombie Endless. - Better Off Dead

In order to get additional zombie maps you need to go to the PSN Store and purchase the DLC for World at War. I believe there were 2-3 map packs released. Each map pack contained a couple multiplayer maps and one zombie map.

Try them enjoy... Codes
Enter these during gameplay for the desired effect.
Code Effect pinata a shower of candy when a zombie dies trickedout Alternate Lawn Mower appearance future Gives zombies futuristic shades dance Makes the zombies dance sukhbir toggles the zombie's call for brains-sound daisies Zombies leave small daisies behind when killed Mustache Zombies Now Have Mustaches
Steam Achievements Unlockable How to Unlock Ask Me About Mustache Mode Enable Mustache Mode Better Off Dead Get a streak of over 10 in I, Zombie Endless China Shop Get to a streak of 15 in Vasebreaker Endless Cryptozombologist Discover the top secret zombie Explodonator Blow up 10 zombies with a single cherry bomb Home Lawn Security Complete adventure mode Immortal Get to 20 flags in Survival Endless Morticulturalist Collect all 49 plants Nobel Peas Prize Get the golden sunflower trophy Spudow! Blow up a zombie using a potato mine Towering Wisdom Grow the Tree of Wisdom to 100 feet Walk This Way Hypnotize the lead dancer zombie

From here you can download the unlock code..

HAVE A LOOK AT THIS.
http://software.informer.com/getfree-unlock-code-for-plants-vs-zombies/
Thanks.

if u jump from the stairs over the fire u will land on a wall ledge and b able to kill them all!!

Zombie Mode
Succefully complete the campaign to unlock Zombie mode. Once you complete the game (on any difficulty) the credits will roll and the mini-game will begin, its called Natch der Untoten, which means Night of the Undead. Endless waves of Zombies attack... fun, fun.