The Monster World, also known as the Other World, the Other Dimension, or the Monster Dimension, is an alternate dimension populated by a wide variety of monsters and other creatures. The Monster World is accessible through portals opened by Dimension Mites. It is uncertain whether it is a single world, or is divided into multiple dimensions.
The Monster Dimension's forests are very similar in appearance to the Human World's, except the rocks and stones are pink and covered in an unknown slime-like substance. The Monster World is also home to deserts with a brownish landscape, and has several massive structure of rock suspended in the sky, and at least two moons.