Megamilpa

Megamilpa (メガミルパ) is the sub boss of the Old Residential stage (Deathtanz Mantisk's stage) from Mega Man Zero 3. It is composed of several circular segments that can fire shots on either side. It burrows out of the ground, flies around in a semi-circular pattern, and unleashes blasts from its left, right or both sides. The easiest way to defeat it is to charge the Shield Boomerang and stay on a side; the shield will block the bullets. When the weak spot (segment with green orb) is in front of you release the shield and start charging again. Megamilpa shoun't be a problem then.