This is the first world of this game, it contains 11 levels including a boss battle. These levels are getting harder and more challenging after you complete each level. This is where Crazy Dave and Penny began this another time travel adventure. Brambles are thorny and spiky, Plants deal damage after placing next to brambles or inside the brambles so be careful planting them. Explosive plants are great way to save for the emergencies for super difficult levels if you're having trouble in each level. Remember, if you defeat all of the remaining zombies in each level including ambushes and other zombies to defeat, you can collect the trophy now! after completing the final level, you have to see the instructions for going to next world.
Zombie shamans are pretty annoying and dangerous, they use heal, defenses, and speed to speed up, and heal zombies! Use explosive plants like Cherry Bomb and Jalapenos to get rid of them before they can use in range to heal and speed up zombies! There is a boss battle after there are no more zombies remaining or ambushes in Level 11.
