It introduces two new things, the Jurassic Imp and the stegosaurus. The Jurassic Imp is fragile, but moves more quickly and eats faster. Try having leveled up defensive plants to combat them, or a good plant that can take out weak threats early. The stegosaurus is a new dinosaur which flings zombies close to the house, which can be dangerous if not treated right.
Gosh, I can grow leaves!
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