The Weavers are a race of powerful creatures created by the Moon Bear King. All Weavers seem to represent wooden or metal torsos with long capes resembling rugs. They are apparently created using the Souls of captured children, as their souls must be freed from a Weaver's Body after a fight to put them down for good, assuming Kutaro manages not to become the one who gets put down instead.
Weavers are normally fought as bosses sometime during the first five Acts of the game. Here is a list of the Weavers faced in the game.