Zombies Enemies: Regular, Conehead, Bucket Head
Recommended Plants: Sunflower, Peashooter, Snow Pea, Potato Mine, Wall-nut, Chomper
Reward: Repeater Plant
Starting from this stage, you have more plants than your plants slot can handle. Thus you will have to pick and choose plants to bring onto the battle field. However, you will find that you will be using certain plants more than others.
In this stage you will see a new enemy the bucket head. The bucket head zombies come with plenty of HP and defense. You will really have to pack a good defense to kill them. The easiest way to beat the stage is to place a chomper zombie behind your wall-nuts. And have the usual sunflower production plus peashooter.
If you feel bored, you can toss in the snow pea too to slow down the zombies, but the chances are that you will not need them.