2 #169 (November 1973) and was created by Herb Trimpe and Steve Englehart, who described it as "just another idea for something powerful/impressive enough to fight the Hulk.

Years later, the creature kidnaps the Harpy and Bruce Banner so they can fix the city's decaying machinery.

[7] When MODOK attacks the city, the Bi-Beast activates a self-destruct mechanism and is killed in the explosion.

[8] Several Bi-Beasts later appear as enemies of the Hulk and other heroes, with one possessing the memories of the first and two others being members of the Masters of Evil and the Sinister Sixteen.

[9] The Bi-Beast is a highly advanced android who rivals the Hulk in terms of physical prowess.