The Complete Zombie

Difficulty: Extreme

The Complete Zombie is an achievement exclusive to the PlayStation Network and PS Vita versions of Plants vs. Zombies. It is earned only by earning all other achievements. It is regarded as the hardest achievement in any form of Plants vs. Zombies.

Overview
To earn this achievement, the player needs to complete Adventure Mode at least twice, encounter the Zombie Yeti, defeat all twenty mini-games, complete all eighteen regular puzzles, finish all ten regular Survival Mode levels and reach Wave forty in Survival: Endless, purchase all plants from Crazy Dave's Twiddydinkies, use every plant at least once, and purchase the Tree of Wisdom and grow it to one hundred feet. In short, you have to obtain every other Achievement to earn the Complete Zombie.

Trivia

 * It serves as the "Platinum Trophy," the highest Trophy available in a game, for Plants vs Zombies on the PS3 and PS Vita versions.
 * In order to unlock this achievement, the player will have to first unlock Home Lawn Security, Master of Morticulture, Smarty Branches, Crash of the Titan, Alive and Planting, Shopaholic, Zombologist, and Beyond the Grave.