Zombie Bosses

Tutorial Boss-Dr. Zomboss
Dr. Zomboss is the first boss in the game (as well as the last, he also appears at other times as a boss). He is moderatly easy because he has no robot suit. Instead he fights you in a flying vehicle. On his boss level, you have 7 plants: Peashooter, Sunflower, Buddy Bud, Walnut, Chomper, Bloomerang and Potato Mine. In his robot suit, he drops zombies. After every 10 zombies, he drops an E. M. Peach Seed. When you use the plant, It knocks him out of his suit where you can blast him, afterwards, he goes back into his charged up flying vehicle. You do that 5 Times and he is dead. You win with 500 Coins, The Key to the next world and You unlocked the E. M. Peach

Front Yard-Mega Buckethead
The Mega Buckethead is the second boss in the game. His vehicle of choice is a robot walker that is wearing a bucket. He drops zombies just like Zomboss (Zombies, Coneheads, Bucketheads, and more). While defending against the zombies, you have to wear down his bucket until it falls off. Once his bucket falls off, the boss himself is exposed to the plants from a shaft above. You then use the Floriken you obtained earlier to blast him with a seed. After 4 Times, he will die and you obtain 1,000 Coins, The Key, and Puff Shroom