General Aguila is an ancient stone general who first appeared in the movie TMNT as one of the film's main antagonists and the leader of the stone generals. He, along with his three brothers and sister, led a massive army to conquer the world in ancient times. To help accomplish this end, Aguila's brother Yaotl opened a dimensional portal using a wheel-like artifact and an annual alignment of nine stars, releasing thirteen monsters into the world. The monsters decimated his army and their current opponents, a Central American civilization. In addition, opening the portal turned Aguila and three of his siblings into stone, and left Yaotl a flesh and blood immortal.