Zombot Plank Walker

 is the boss of Pirate Seas in Plants vs. Zombies 2: It's About Time, which can be seen in Day 25. It is controlled by Dr. Zomboss.

Almanac Entry
TOUGHNESS:  Undying SPEED: Hungry

The plant plundering privateer of the high seas.

Special: cannon can rain down imps past your defenses

"Hoist the mizzemast, batten down the hatches! 15 zombies on a dead man's boat, yo ho ho and a bucket of brains!" Dr. Zomboss had to admit he was really getting into this whole pirate thing. Though he never thought he'd be on a boat on a boat.

Overview
The Zombot Plank Walker has an absorption of 1,375 normal damage shots, and its appearance changes at 458 and 917 normal damage shots, before dying at 1,375 normal damage shots.

Attacks
The Zombot Plank Walker randomly performs one of the following actions:
 * It will summon zombies:
 * First phase:
 * Conehead Pirate
 * Pirate Captain Zombie
 * Zombie Parrot
 * Imp Pirate Zombie
 * Second phase:
 * Conehead Pirate
 * Buckethead Pirate
 * Pirate Captain Zombie
 * Zombie Parrot
 * Gargantuar Pirate
 * Imp Pirate Zombie
 * Third phase:
 * Conehead Pirate
 * Buckethead Pirate
 * Barrel Roller Zombie
 * Imp Pirate Zombie
 * Pirate Captain Zombie
 * Zombie Parrot
 * The "eye" will open and reveal a cannon. It will then fire six Imp Pirate Zombies into the third or fourth column.
 * It will tap the ground, step back, and charge, destroying any plants and zombies in two rows, stopping near the lawn mowers and jumping back. As with the Zombot Sphinx-inator's similar attack, using Plant Food can prevent it. It will also stop and be stunned if it collides with a Cherry Bomb.
 * Although any Plant Food power-up will work, Spikeweed's is the least recommended plant to be used against this attack. Spikeweed's will pull the Zombot Plank Walker and stop it for a short while, although this is shorter than the period it would be stunned with other Plant Food power-ups. Also, that can be a bad idea since the Zombot will destroy your plants, but not the zombies.
 * While using a Kernel-pult's Plant Food effect works most of the time to stop his charge attack, sometimes, especially in stage three of the health bar of the Zombot, it is unfazed by the catapult plant's Plant Food upgrade at all when he is doing his charge and will proceed to destroy plants from both lanes anyway. You have no idea when this will happen so be prepared.

Strategies

 * See Pirate Seas - Day 25.

Trivia

 * Dr. Zomboss has an eye-patch on his left eye just like a pirate. It is the same eye missing from his face for his hologram when the player defeats him.
 * The Zombot Plank Walker actually looks like a ship with cannons attached to it and anchors as its legs.
 * This machine has a single eye just like the Egyptian Variation, Western Varation, and the Future Variation which resembles a cyclops.
 * Zombot Dark Dragon and Zombot Sharktronic Sub are the only Zombots that has two eyes.
 * This, Zombot Sharktronic Sub and Zombot Dark Dragon are the only Zombots that do not launch missiles. The Zombot Plank Walker instead fires a barrage of Imps, the Zombot Dark Dragon breathes flames that could hatch Imp Dragon Zombies while the Zombot Sharktronic Sub sends sharks to destory some of the player's plants.
 * If the player uses Plant Food on a Spikeweed before it jumps, it will teleport to where it was jumping to.
 * The in-game Zombot Plank Walker has the letter "Z" on its flag, while some pictures do not.
 * It is the only Zombot that does not have two joysticks for Dr. Zomboss to control; instead, it has a steering wheel.
 * This and the Zombot Dark Dragon are the only Zombots which can utilize Imp variants in their attacks.
 * There is a glitch in its almanac icon.