Shadow, known as Dark Shadow (ダークシャドー,Dark Shadow?) in Japan, is a virus from the Mega Man Battle Network series. It is invulnerable to all attacks except Sword type attacks. Shadow warps when it moves, and when it attacks its target, it turns into daggers (side), axes (back), and polearms (front).
Shadow is black and purple with yellow eyes.
RedDevil (レッドデビル,RedDevil?) is dark-red and red with green eyes.
BlueDemon (ブルーデーモン,BlueDemon?) is blue and light-blue with red eyes.
Shadow, known as Kage Bunshin (カゲブンシン,Kage Bunshin? lit. "Shadow Alter Ego") in Japan, is the Battle Chip from Shadow viruses. It temporarily makes the user immune to all attacks except for sword type attacks. In addition, charge shots become step swords.