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Jurassic Marsh - Day 42 is the forty-second level of Jurassic Marsh in Plants vs. Zombies 2. It's a boss battle between the upgraded Zombot Dinotronic Mechasaur. After completing this level, the player receives a money bag.



(Dr. Zomboss appears)
Dr. Zomboss: Bah! Your infernal interference enrages me! Bah!
Dr. Zomboss: The Zombot Dinotronic Mechasaur, 2nd Edition, shall end your travels permanently!
Dr. Zomboss: Bah!
(Dr. Zomboss leaves)


(Crazy Dave and Penny appear)
Crazy Dave: We did it! Thanks, occasionally helpful dinosaurs!
Penny: Our upgraded plants proved invaluable as well, User Dave.
(Crazy Dave and Penny leave, Dr. Zomboss appears)
Dr. Zomboss: Arrg! How could a robot dinosaur fail? MY PLAN WAS FOOLPROOF.
(Dr. Zomboss leaves)


First phase

Zombies spawned:Jurassic Buckethead2 Jurassic Fossilhead2 Jurassic Bully2
Dinosaurs spawned:Raptor2

Second phase

Zombies spawned:Jurassic Fossilhead2 Jurassic Gargantuar2 Jurassic Bully2 Amberhead Zombie2 Jurassic Rockpuncher2
Dinosaurs spawned:T. Rex2

Third phase

Zombies spawned:Jurassic Fossilhead2 Jurassic Gargantuar2 Amberhead Zombie2 Jurassic Rockpuncher2
Dinosaurs spawned:T. Rex2 Ankylosaurus2


  • Plant Guacodiles and Parsnips close to the Zombot. This ensures that they can attack the Zombot, as well as deal with the zombies that are spawned. However, it might help to use Endurian to protect them, because their rushing attacks can actually leave the lanes open for other zombies.
  • Because the Zombot attacks with missiles so frequently, it can be difficult to keep your plants alive for very long. Spread your plants out so the splash damage from the missiles cannot hurt multiple plants at once. It also uses its laser attack frequently. Although this burns up your plants, this can actually be advantageous if the lane is clogged up with dangerous zombies.
  • In the later phases, be especially careful of Jurassic Rockpunchers. They are durable, and can easily smash through your defenses, and they only get more dangerous when dinosaurs assist them. Because of this, prioritize using Perfume-shroom on the dinosaurs in the lanes they are summoned in to get rid of them quickly. Spamming Guacodiles can also be effective.
  • The final phase it incredibly difficult, due to the presence of Jurassic Rockpunchers and Jurassic Gargantuars, which will be assisted by a T. Rex or ankylosaurus. Use Perfume-shroom to charm the dinosaurs, or Guacodiles and Parsnips to take them out. Acting fast is crucial, as you have no lawn mowers in this battle.
  • Plant Food should be used to take out masses of zombies, as well as damaging the Zombot. Parsnips Plant Food effect is particularly powerful, easily destroying zombies and dealing heavy damage to the Zombot. If all else fails, don't be afraid to use Power Ups.



Jurassic Marsh Day 42 BOSS

Jurassic Marsh Day 42 BOSS

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Gosh, I can grow leaves!
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