Ukubonga

Ukubonga is an island that D.W. imagined on her birthday.

Monsters

 * Bobblebay
 * Bobbleboo
 * Muk
 * Filomena
 * Ruthra

Other creatures

 * Octopodi
 * Knuck-knuck bird
 * Ukubonga marble bugs
 * Ukubonga marble score birds

Arthur

 * "D.W. and the Beastly Birthday"

Behind the scenes
The island is based on Maurice Sendak's Where the Wild Things Are.