Plants vs. Zombies
In Plants vs. Zombies 2, Dr. Zombie showed no concern or regret for his enemies. Even in the driveway without a lawn mower, he left many of his companions behind. He spent most of his time laughing at crazy Dave and using profane or vulgar words when talking to him.
Dr. Zombie is also a clever strategist. If one of his machines breaks down, or if Gargantuar, where he is stationed to protect the key to the world, is defeated, he will use many backup plans to fill it. Generally speaking, his main goal is to persuade crazy Dave to give up his time and space trip to find tortillas, so that Dave can obey his will and eat Dave and the players' brains.