Brain Busters (PvZO)


 * For the similar game mode in Plants vs. Zombies, see Mini-games.
 * For the Brain Busters in Plants vs. Zombies 2, see Brain Busters.

Brain Busters are types of levels in Plants vs. Zombies Online which are more challenging than usual and add different mechanics, conditions, or objectives to gameplay. They are usually unlocked using Stars, though some are placed on the regular levels. Some Brain Busters are remakes of Plants vs. Zombies mini-games and some are returning from Plants vs. Zombies 2, but others are new. In this game, most Brain Busters are only available in one world.

Beghouled
In this Brain Buster, the lawn is filled with plants and the player can swap them either horizontally or vertically to make a match of 3 or more plants to make them disappear. Unlike the mini-game in Plants vs. Zombies and Brain Buster in Plants vs. Zombies 2, the number of zombies is finite and the player can possibly finish the level without doing anything. Making matches, however, is required to earn a Star. Making matches produces Sun but this is only used for shuffling the board or filling the Crater; no plants can be upgraded.

Played on:
 * Ancient Egypt - Days 8-2, 8-3, and 8-4
 * Pirate Seas - Days 10-2, 10-3, and 10-4

Save Our Seeds
In this Brain Buster, the player has to stop the zombies from eating/destroying the endangered plants.

Played on:
 * Qin Shi Huang Mausoleum - Day 5-2
 * Far Future - Days 5-2, 5-3 and 5-4

Carrot Archery
In this Brain Buster, one or more Carrot Missiles are placed on the lawn and the player manually controls them to kill the zombies. In the hard version, there is a wind mechanic that affects the trajectory of missiles.

Played on:
 * Easy version:
 * Qin Shi Huang Mausoleum - Days 4-2, 4-3 and 4-4
 * Hard version:
 * Qin Shi Huang Mausoleum - Days 8-2, 8-3 and 8-4
 * Pirate Seas - Days 14-2, 14-3, and 14-4

Wall-nut Bowling
In this Brain Buster, the player uses Wall-nuts to attack zombies by placing them behind the Flowers and rolling them towards zombies. Only normal Wall-nuts are given to the player.

Played on Ancient Egypt - Days 4-2 and 4-3.

Bonk Choy Boxing
In this Brain Buster, one or more Bonk Choys and Desert Death Zombie's quicksands are placed on the lawn. The player manually controls these Bonk Choys to punch the zombies coming through the quicksands. Each level plays different music from Plants vs. Zombies 1.

Played on Ancient Egypt - Days 5-2, 5-3 and 5-4.

Mummy Memory
In this Brain Buster, the player has to match various symbols by flipping the Camel Zombies' boards to kill them.

Played on Ancient Egypt - Days 7-2, 7-3 and 7-4.

Sunny Zombies
In this Brain Buster, Sun-producing plants cannot be used and zombies drop sun when killed. Some zombies drop bigger amount of sun.

Played on Ancient Egypt - Days 9-2, 9-3 and 9-4.

Preset Sunflowers
In this Brain Buster, Sun-producing plants cannot be used and player must rely on Sunflowers already placed on the lawn. These Sunflowers are not considered endangered and there is no direct penalty for losing them. However, doing so will cut the player's sun supply.

Played on Ancient Egypt - Days 10-2, 10-3 and 10-4.

Terracotta Statues
In this Brain Buster, there are many Terracotta Statues on the lawn and one or more zombies are encased. The game shuffles these statues randomly, then the player must guess the location of the zombies and break the correct statues using the Mallets. If the player fails, the player can either use the provided Squashes or Lawn Mowers to kill the zombies.

Played on Qin Shi Huang Mausoleum - Days 6-2, 6-3 and 6-4.

Cannons Away
In this Brain Buster, the player has to blast as many Seagull Zombies as possible using the provided Coconut Cannons to beat the target score.

Played on Pirate Seas - Days 8-2, 8-3 and 8-4.

Locked and Loaded
In this Brain Buster, the player must use the plants pre-selected by Crazy Dave.

Played on Pirate Seas - Days 11-2, 11-3 and 11-4.

Sun Bombs
Here, all sun-producing plants cannot be used. Sun falling from the sky is purple before reaching the ground. They explode, taking out plants and zombies only if the player touches them before they reach the ground. However, sun falls from the sky twice as often compared to a normal level.

Played on Far Future - Days 7-1, 7-2, 7-3 and 7-4.

Special Delivery
In this Brain Buster, the player must use plants given from a conveyor belt. Power Tiles are also given via the conveyor belt.

Played on Far Future - Days 12-1, 12-2, 12-3 and 12-4.

Trivia

 * In Brain Busters where the player can control the plants manually (Carrot Archery, Bonk Choy Boxing, and Cannons Away), the player can use A, S, D, J, and K keys on the keyboard to perform actions on the plants.
 * Ancient Egypt contains the largest number of world exclusive Brain Busters, which is five.
 * It is currently unknown if East Sea Dragon Palace contains any Brain Busters.