You can get the mystery zombie by replaying the campaign till the conveyor level of the fog stage (level 4-10)
Normally in the 2 first levels of plants vs. zombies the zombies are the newspaper zombie, zombie and zombies that are in costumes are in those levels.
The Yeti Zombie
the rugby zombie
You need to complete the campaign and then you will unlock zombies>
well you can play it in hackedarcadegames.com but its Japanese version
The Smallest Zombie is The Imp i think
you need a blue gravestone.
you cannot unlock zombie mode in modern warfare. Zombie mode is only avalible in black ops.
there is a make your own zombie option
I do not believe you can unlock him for use or anything but during the night front yard level is the first time you encounter him i believe.
you keep playing and playing when a zombie dies thats one zombie in the bin.
Yes