Colossal Long Legs

The Colossal Long Legs is a species of massive arachnorb that can be traversed on or within.

=In fanon games=

In Pikmin 3.9
The Colossal Long Legs is a boss in Pikmin 3.9. It is an arachnorb covered in stone and moss, and that is half the size of the area it is found, Arachnorb Canopy, of which it slowly walks around the outside. Its body serves as Colossal Cavern, and at the end of the cave, its heart, which has a multitude of elemental attacks, is fought. Wait until the heart ceases attacking before throwing Pikmin at it. Before landing at Arachnorb Canopy for the second time, the option is presented to land at the normal landing site or on the Colossal Long Legs.