Three additional modes—Mini-Games, Puzzle, and Survival—become available once Adventure mode is completed. In Mini-Games mode, the player selects from a collection of twenty mini-games. These levels pose the player with unique challenges, each using some gimmick—often variants of a conveyor belt that gives the player certain plants.
In Puzzle mode, the player selects from two types of levels: "Vasebreaker" and "I, Zombie". In "Vasebreaker", the player breaks open a set of vases, each containing a plant or a zombie. The level ends when all the vases are smashed and all the zombies are killed.
In "I, Zombie", the player places zombies to get past pre-placed cardboard cut-outs of plants, aiming to eat the brain at the end of each lane. Survival mode offers a selection of levels in which the player chooses plants to defeat increasingly challenging waves of zombies.
Time Adventure - After finishing tutorial levels of the game, the player goes to the first world, Ancient Egypt to defeat zombies. Then, the player can travel to other areas, such as Pirate Seas and Wild West.
Piñata Party - Every day, a Piñata Party will appear. Piñata Parties take place on the front yard or other Time Periods, and feature zombies and plants from all areas. They are normally conveyor-belt levels, but some special parties will be Locked and Loaded levels.
Zen Garden - The Zen Garden is a virtual garden where the player keeps plants that he or she has collected. By watering and growing plants, players can earn coins and free boosts for their plants.
Arena - The mode allows competition between players. Contestants plan their own team to get the scores by defeating zombies in time. If the zombie is killed further from the house, the player will get higher scores. The more the player wins, the more rewards they receive.
Devour Tower - The main story mode of the game. The entirety of this takes place in a haunted tower consisting of 33 floors.
Zombie Breakout - This is playable in the 11 unlockable town areas, with 3 levels available per invasion.
Brainiac Showdown - A boss showdown that changes weekly
