Pengi

 Pengi is a virus from Mega Man Battle Network 3. It shoots icicles at its target that bounce between it and its target. It waves back and forth. When on ice panels, it is invincible to everything except Navi chips.

Pengi
 Pengi is a purple variant with red lips and yellow hair.

Penga
 Penga i s a green variant with orange lips and tan hair.

Pengon
 Pengon i s a yellow variant with purple lips and purple hair.

PengiΩ
 PengiΩ i s a blue variant with purple lips and orange hair.