The Catapult Zombie.

Catapult Zombies lob basketballs at your plants. When he runs out of basketballs, he will drive over your plants, crushing them. Fortunately he isn't very common and can be easily defeated with stronger plants.

Health: Medium

Strengths: Launching basketballs, driving over plants

Weaknesses: Umbrella Leaf, Spikeweed/Spikerock