Kuma-Nui

The Kuma-Nui is a rat Rahi.

Matoran Adventures
The Kuma-Nui is a giant rat Rahi and the second boss.

Matoran Adventures
The Kuma-Nui is the second boss, encountered in Ta-Wahi. It acts almost exactly like the Muaka, and has the same attacks. The only difference is height, as it is much taller than the first boss.