Zombie Spy

The Zombie Spy is the fourth new zombie encountered in the Roman Empire. The zombie sneaks past your defences and cannot be targeted by any plant unless in range of an Elderberry. All splash damage and area of effect attacks done by attacking plants do not harm the Zombie Spy. Insta-kills like the Cherry Bomb and Jalapeño can kill the Zombie Spy. Lava puddles from Lava Guava and Snapdragons plant food can damage the zombie, whereas ground-only plants like the Spikeweed and Spikerock cannot.

Suburban Almanac Entry
“Yeah, that’s right,” says Zombie Spy, “I’m a plant, not a zombie… Trust me.” Zombie Spy sniggers. He finds it amusing that plants can’t see through his cunning disguise.

Strategies
The spy is a huge threat. It is essential to set up a defence prior to their entry as, if they breach your defences, plants will have to be dug up to target them. The Elderberry is necessary to combat the Zombie Spy. The Glow-shroom can also be used to illuminate the spy, but it still requires an Elderberry to initially target it.

Trivia

 * The Zombie Spy would be the first 'invisible' zombie in Plants vs. Zombies 2.