text: Using a special device in his left arm, Amadeus Cho could turn into a Hulk and had the same powers as the original Hulk, but he lost most of the power. As Brawn, he now assumes a gamma-powered form that more closely resembles his normal appearance, but is weaker than his original Hulk form.  However, Amadeus is capable of turning back from his Brawn form into his original Hulk form when angered enough.
  Reception
  In 2021, CBR.com ranked Amadeus Cho 1st in their "10 Smartest Marvel Sidekicks" list.
  Kerberos the Coyote
  Amadeus was once usually accompanied by a coyote pup who peered out the front of Cho's jacket. He picked him up along the side of the road, near a roadside diner where he met the Hulk for the first time. The coyote's mother had been hit and killed by a car, but the pup had remained with her body. Cho, not failing to see the similarity, took him in. Cho has since trained him to distract opponents and perform simple search operations.
  Kerberos's name was chosen in a contest held by the writers of the comic; the winner was a reader from Montevideo, Uruguay, Martín "MaGnUs" Pérez. The name was chosen by the reader both because of the mythological connotations and the computer network authentication protocol of the same name. Kerberos is also known by the hypocorism "Kirby".