Skull Greymon

This skeleton Digimon is nothing but skin and bones—minus the skin. Singularly fixated on fighting, it extended its life through combat instinct alone, even as its body rotted away, eventually becoming SkullGreymon. Without a scrap of intelligence or reason left to restrain its instinct, SkullGreymon's existence is a threat to other Digimon. Its special move is an organic missile fired from its spinal cord. The latest research suggests that this attack eventually evolved into Oblivion Bird, which adds a new tracking function and dramatically upgrades both power and range.