This was a detailed description of the whole Hercules v. the hydra myth (including the part most people forget, where Hercules' nephew deals with the hydra's severed heads). Note that, as the Wall ...

Rise of Hydra's leading voice actors reveals the possible release window for the upcoming superhero team-up game.

Hercules, in classical mythology, fought the Hydra as one of his 12 labors. These labors in many instances involved Hercules fighting monsters, and there is a possibility others were kaiju as well.