Zombomb

Zombomb is a Gargantuar variant found in the special missions of Garden Ops in Plants vs. Zombies: Garden Warfare. It holds a large bomb and will not target the plants. Instead, it will try to bomb the garden. Its name is a portmanteau between the words "zombie" and "bomb". It will push plants when near. When Crazy Dave says "STOP THAT ZOMBOMB!", the player would better hope he or she has a Chomper on his or her team because its Goop will help slow the zombie down while your teamates attack the Gargantuar.

As Peashooter
Using the Chili Bean Bomb or the Sombrero Bean Bomb is the best choice. Do not get too close to it, or you will be launched away. Using the Pea Gatling is a good choice when it comes to a safe distance.

As Sunflower
The Sun Pulse or the Sunbeam is a good choice when you are far from it, but take care of the Browncoat Zombies while you are at it. You can use the Heal Flower + Sunbeam/Sun Pulse Technique.

As Chomper
The Zombomb will not target at you, so you have the advantage to shoot Goop at it.

As Cactus
Garlic Drone is recommended so you can shoot at it from a secure distance.