"Hardgo Hopper goes hard!" is the motto of Hardgo Hopper, the older twin-brother of Honda Hopper. Even if they are identical twins, they have differences that makes no-one (exept Venom Predator and some few other mice) to believe in that. You see, Hardgoīs eyes are dark blue, like Mizeleingzelo`s and VinnerPeace`s and his fur is white-nuanced slosh-colored; while Honda is white-furred and red-eyed. The explanation to question "Why Hardgo looks so different compared to Honda if they should be identical?" is The Powers, which can make the one who has de Megazone blood in his or her veins, to have his/her fur & eye color almost anything possible (and sometimes to something that has thought to be impossible). And both Hardgo and Honda have de Megazone blood in their veins.

Hardgo, like his brother Honda has been brought to Technodrome, to Mizeleingzelo and Venom from future 8th dimension by the mother of the twins, Aston Hopper. Mizeleingzelo and Venom are actually ancerstors to Hardgo and his brother, and so is VinnerPeace too. It means that if VinnerPeace dies or gets hurted in some certain dramatical ways before he has gotten the child that will be one in the chain of the ancestors of Hardgo and Honda, leading to their mother Aston and them, they will die and stop existing because they never were created. Hardgo and his brother are hunted because they are the first non-vampire children of Kraiser-Predator clan, that what everybody in the Kraiser-Predator clan would like to be and what the full-vampires donīt never want to happen to anybody.