Giant Rhino

This rhinoceros was a summon of Pain.

Appearance
Resembling a normal rhinoceros but with small wings on its back, it had a number of body piercings and Rinnegan, implying it is being controlled by Pain as well as dark marking around its eyes. It also had a giant chakra receiver stuck in its forehead. It also had big pointy ears and a small tail.

Abilities
Because of its sheer size and nature, it had great brute force, able to destroy an entire building after charging into it. Like the rest of Pain's summons, it shares a visual link through the Rinnegan. It also had a small pair of badly damaged wings, though it is unknown if it was ever able to fly.

Tale of Jiraiya the Gallant
In the anime, it was summoned during Pain's fight against Jiraiya, where it charged at his shadow clone, forcing the clone to jump out of its way. As it charged again, it was defeated by Gamaken.

Pain's Assault
After the Konohagakure Intelligence Division building was found, it was summoned, and bursts inside. In the anime, after this happened, it is revealed that it fought Ibiki Morino, but was ultimately defeated after being imprisoned. However, due to Ibiki being defeated by its summoner, it is presumed that it was freed as it was later summoned again to battle against Naruto Uzumaki. It charges at Naruto, but is stopped by him in its tracks, and is thrown into the air, where it is finished off by Gamaken.

Pains Nashorn