Plants vs. Zombies: Zombies' Revenge

Plants vs. Zombies: Zombies' Revenge is a Tower-Defense game wherein you place Plant Fortresses and other cool stuff.

Story
''When you defeated all the zombies, other zombies took revenge; and here they are, they asked Dr. Edgar Zomboss to  be stronger, and he made the zombies stronger. They started to invade your lawn.... Will the plants win or the zombies? Find out here...''

Plant Fortresses
Here is the list of Plant Fortresses present. The list of upgrades.

Zombie Soldiers
The list of Zombie Soldiers present.