Billy (virus)

Billy (ビリー) is a virus from the Mega Man Battle Network series. Their appearance is that of a ball with eyes, stubby feet, probe-like arms and a lighting bolt protruding out of the back of their head. When in battle, these viruses move around by one panel in random directions. After a set amount of moves, they begin their attack by clenching their thin needle arms and releasing a slow-moving, homming electric ball that floats toward the player for a set duration of time. If hit, they cause the player to be paralyzed for a brief moment and stunned for a bit longer. When stunned, everytime the player moves one panel, their motion is interrupted to deliver a quick shock, dealing 10HP of damage. After a few seconds wandering around after the player, the ball disappears; upon moving a set amount of squares, the viruses repeat this attack pattern. Stronger variants release faster and more damaging electric balls.

Billy
Billy is a variant with yellow colored balls on two feet, with two prongs for arms, and a lightning bolt protruding from their head. They have dark-red eyes.

BillyEX
BillyEX is a variant with green colored balls on two feet, with two prongs for arms, and a lightning bolt protruding from their head. They have red eyes.

Billy2/Silly
Billy2/Silly is a variant with red colored balls on two feet, with two prongs for arms, and a lightning bolt protruding from their head. They have blue eyes.

SillyEX
SillyEX is a variant with blue colored balls on two feet, with two prongs for arms, and a lightning bolt protruding from their head. They have red eyes.

Billy3/Killy
Billy3/Killy is a variant with grey colored balls on two feet, with two prongs for arms, and a lightning bolt protruding from their head. They have red eyes.

KillyEX
KillyEX is a variant with pink colored balls on two feet, with two prongs for arms, and a lightning bolt protruding from their head. They have green eyes.

Other Media
Billys appears in the MegaMan NT Warrior anime series.