Zombies Enemies: Regular, Conehead, Buckethead, Pole Vault
Recommended Plants: Sunflower, Peashooter, Wall-Nut, Potato Mine, Snow Pea, Repeater
This stage gets a little harder by mixing up all the zombies that you have encountered so far. To pass the stage easily, use the sunflower + potato mine early combo. Setup your snow pea defense to slow down the enemies and placing wall-nuts whenever your cooldown is ready.
Finish the setup by placing more repeaters so that they can take down the pole vaults and bucket head zombies. Follow the layout based on the screen shots below, you will find that your plants to take out all the zombies quite easily.