Dominerd

 Dominerd is a virus from the Mega Man Battle Network series. When the virus is not attacking, it will have StoneBod active, taking only 1 damage per attack. When the virus attacks, it warps directly in front of its target and bites the target. Dominerd2 and Dominerd3 can use Geodon1 chip, turning the whole field into cracked panels. In Mega Man Battle Network 3, Dominerd viruses remain invisible until they attack (or until they are the last enemy left alive).

Dominerd
 Dominerds are gray with a black teardrop head piece (hair).

Dominerd2
 Dominerd2s are green with a purple teardrop head piece (hair).

Dominerd3
 Dominerd3s are tan with a orange teardrop head piece (hair).

DominerdΩ
 DominerdΩs are red with a green teardrop head piece (hair).

Source
Sprite images found at Sprites INC