In the early days of PC gaming, the original (released in 2009) often required a unique 25-character alphanumeric key to move past trial versions. Today, these keys are primarily used as Activation Keys for digital stores.
Many users searching for "keys" are actually looking for that change the appearance of the game. These codes are typed during a level and do not require a console. Codes - The Plants vs. Zombies Wiki Plants Vs Zombies Registration Key List
Used to add the game to your EA library by selecting "Redeem Code" in the "My Collection" tab. How to Get a Legal Registration Key In the early days of PC gaming, the