Slimey

 Slimey is a slime virus from Mega Man Battle Network 3. It hops into either one of the four directions, one panel at a time, towards its target and changes the color of each panel that it hits to its own color, stealing those panel. Once it reaches an obstacle or the last remaining column of the player's area, it will hop around its own area, attempting to relocate and hop onto the player. This virus deals damage by jumping onto the player and then back to the panel it originally jumped from to deliver the attack.

Slimey
 Slimey is a blue variant.

Slimer
 Slimer i s a pink variant.

Slimest
 Slimest i s a yellow variant.

SlimeyΩ
 SlimeyΩ i s a gray variant.