$ 99 c
Buy the blue grave...
You have to get the blue grave and unlock blue zombies. Blye grave is located in the Market, Items, Special.
You need to buy the Blue Grave from the market for 2 Brains (available on level 1 ( 0 xp required))
All it does is gets you blue zombies and some are more powerfull all you have to do is buy it the more you level up the more blue zombies. I hope this was helpfull
you need a blue gravestone.
You have to buy a blue gravestone.
Unlocks all the blue zombies
Once you have leveled high enough to access blue zombies, you must buy the blue gravestone before you can plant any blue zombies.
They are more powerful and have more abilities.
Go into the market.(There will be a cursor in the bottom right corner of the screen, click on it and then click the market icon which will have a M inside of a building) then go to items/functional and you will have to pay 2 brains to purchase the blue grave.
depends on type of z
It is best that you have BLUE zombies. It will be easier to beat corporateville.