Planet Fear is the one place the Irken Empire won't touch, as it is the planetary embodiment of fear. In fact, the planet is so scary that no Invader has volunteered to try and conquer the planet, and the job of invading the planet is still scary to most Invaders. Invader Skoodge was forced to conquer the planet and after much torment succeeded, much to the Tallests' anger. The planet now serves as a time out zone for misbehaving Irken smeets. It is also used as a halloween party planet. The castle seen in the photo is Scarecrow's castle.