Shadow Bug
"http://i20.photobucket.com/albums/b223/Bigger_Torkoal/Shadow2.jpg" Shadow Bugs are the purple, round things that the members of the Subspace Army are made of. They are capable of copying a character's trophy and assume that character's appearance. While copying other characters, they appear purple and smokey while their eyes become a yellowish color. Shadow Bugs were created by extracting a substance from Mr. Game & Watch, leading Taboo to have him captured to become the source of the Subspace Army's soldiers.
Trophy Description
Embodiments of a primordial substance that can take the form of any number of lesser Subspace foes. They can also copy the forms of trophies to create evil doppelganger versions of them. The mysterious substance inside Mr. Game & Watch can be extracted endlessly. Once Tabuu discovered this, he used Mr. Game & Watch to create the Subspace Army.