The Diamond Knoll is a grassy area found in Diamond City. It is inhabited by the Diamond Troll, who lives inside a small hut. In WarioWare: Twisted!, a class from Diamond Kindergarten (including Kat and Ana) visit the Knoll on a field trip. Kat and Ana start to explore with their pets, Shadow the Dog and Shuriken the Falcon, and while Ana is distracted by a flower, Kat provokes a hive full of bees. The bees chase them into the Diamond Troll's hut, and the sisters lock themselves inside. The Diamond Troll then appears and starts to attack them, but it is quickly defeated when Shadow and Shuriken break into the hut and land on the Troll. The group leaves the hut only to find that the bees are still there, and they are chased once more away from the Knoll.