You've Goat to Be Kidding Me! is an achievement in Plants vs. Zombies: Garden Warfare 2. To earn the achievement, the player has to use the Rose or any other Rose variant and use the Goatify ability to turn 100 Zombies into Stinky Goats.
Its name is a portmanteau of the phrase "you've got to be kidding me" and "goat," referring to the animal related to the achievement.
It is recommended to use Goatify against AI Zombies as they are very easy to land Goatify on, after this you should warp home because it instantly recharges your Goatify. The player can also activate the Flag of Power for more Zombie AI to come out.