Metrid

 Metrid is a virus from Mega Man Battle Network 3. It attacks by summoning meteors onto the player's side of the field, landing in random locations. If it lands on the target, the target takes damage. Variants will summon meteors more accurately at the target. If an obstacle is present on the field, Metrids will take shelter behind it if possible before launching their attack.

Metrid
 Metrid is a yellow shoe-wearing variant with a white cowl with red and orange hem. It also holds a white and purple rod with a red flame.

Metrod
 Metrod is an orange shoe-wearing variant with a blue cowl with green hem. It also holds a blue and brown rod with a green flame.

Metrodo
 Metrodo is a purple shoe-wearing variant with a yellow cowl with brown hem. It also holds a yellow and red rod with a brown flame.

MetridΩ
 MetridΩ is a black shoe-wearing variant with a green cowl with pink hem. It also holds a green and blue rod with a pink flame.