Zombie Hamsterball

Zombie Hamsterballs are items in Plants vs. Zombies 2 that was introduced in the 6.9.1 update. It can come with nearly any of the existing zombies inside it, including Gargantuars, and significantly increases the speed of the zombie it contains, but breaks after absorbing a limited amount of shots. It kills any plants instantly by rolling into them, similar to Barrel Roller Zombie's barrel. After it kills a plant, its speed will decrease. It is only avaliable in Battlez and will appear during "HAMSTER BRAWL!" ambushes.

Alongside these abilities, Zombie Hamsterballs will occasionally appear with Plant Family icons on them, which will show what plants the Hamsterball is weak or strong against.

Origins
They are based on the hamster ball, a type of exercise equipment for hamsters and other small rodents. However, these balls are resized for zombies to use.

Strategies
A Spikerock can instantly destroy it, but it will remove a spike on it. This however, will not work if the hamster ball approaches the Spikerock using a slider tile. Spikeweeds can also be used for their cheaper price and just as fast recharge, although they will only take one roll. An easy way to counter the Hamster Ball is to use the Spear-mint, which creates five Spikerocks, therefore quickly nullifying the Hamsterball threat.

Players should also pay attention to the icons that appear on the Hamsterballs, as that helps show how to defeat them quickly.

Trivia

 * According to a blog by PopCap representative Haemophilus_EA, the Zombie Hamsterballs were invented by Dr. Zomboss.
 * They can only appear in Battlez, and not anywhere else in Plants vs. Zombies 2.
 * There are a few zombies that cannot be placed in a Zombie Hamsterball (such as Pianist Zombie, due to his piano).