The Hulk is a pretty strong opponent and one good punch can level whole skyscrapers. Hiro Kala is also a tough opponent in his own right, but I don’t think that he can match up to the Hulk. The Hulk has fought a lot of villains throughout the years and he’s gotten several power ups as well. Hiro Kala may have lost, but maybe he will be back. Hulk wins.