Deinos

Deinos are an enemy species in Xenoblade Chronicles, and Future Connected. They are velociraptor-like creatures with a second "head" and cackling energy on their backs.

Xenoblade Chronicles
Deinos can be found in Makna Forest and. In Future Connected, they inhabit the Bionis' Shoulder.

Trivia

 * If a Deinos is d, the second "head" falls off the main body and bounces around haplessly.