Rush Mammoo

The Rush Mammu is a giant woolly mammoth-like boss Reaverbot. It and its smaller, more common type resemble the Karubun. The Rush Mammu is the guardian over Sera's prison on Forbidden Island. MegaMan only comes up to its ankle/knee. It attacks shooting ice blocks from its trunk, a shockwave, a charge, and shooting energy blasts from its belly.