Sonic Grenade

Sonic Grenade is one of the abilities for the Engineer Zombie in Plants vs. Zombies: Garden Warfare. It does not do any damage, but it can stun plants and raise burrowing Chompers from the ground and also stun them, making it useful for when the player gets gooped.

Description
''The Engineer can cause mayhem with his Sonic Grenade by stunning all nearby Plants making them vulnerable to attack. It also forces all nearby Burrowed Chompers out of the ground.''

Trivia

 * It screeches "BRAAAAAAAAAAAAAINS!" upon impact, but the sound is subtle and only the "SSSSSS" sound can be heard.
 * A good strategy is to aim upwards before launching the Sonic Grenade for it to go farther, much like the strategy for the Zombie Stink Cloud/Super Stink Cloud.