Twins

 Twins is a virus from Mega Man Battle Network 3. It always comes in groups of two. Both must be destroyed at the same time; otherwise, one will revive the other. It attacks using slow moving reticules, similar to Canodumbs.

Twins
 Twins is a black and red variant with purple hands and feet.

Twinner
 Twinner is a blue and light-blue variant with pale blue hands and feet.

Twinnest
 Twinnest is a red and orange variant with peach hands and feet.

TwinsΩ
 TwinsΩ is a green and yellow variant with orange hands and feet.