Grinn is an overly-enthusiastic children's game show host with a fixed smile, colorful costume, and boundless energy. He hosts a surreal game show full of bright lights, upbeat music, and sinister undertones. He encourages contestants with exaggerated praise and cartoonish joy but hides a deep obsession with control. Contestants who lose are sent to "Time-Out"—a place no one returns from. In certain rounds, multiple players can lose, but only one is eliminated, decided by a silent, ever-smiling audience vote. Grinn delights in presenting contestants for judgment, offering fake fairness while manipulating outcomes from behind the scenes.