It told him that he would fight an evil monster one day, and that he must begin training in earnest with the traditional weapon of Native Americans-the tomahawk. Thunder saw a flock of crows appear from nowhere, and one them-a great black bird-spoke to him in his native language. His spirit guide came to him at that moment. A great storm came as he sat upon a mountaintop, bolts of lightning striking all round him.

When Thunder was a teenager he went on a vision quest in the wilderness to seek his weyekin or spirit guide that would help bridge the gap between our world and the Spirit World. Thunder was built like a mountain and played football, while Eagle was a wrestler and amateur boxer. The brothers studied hard in school and were gifted athletes. They were the grandchildren of a chief, and their parents were both tribal police officers who encouraged their boys to 'walk with the law,' keeping the moral high-ground and refusing to give in to negativity and vice. Thunder grew up on a Nez Perce reservation in Idaho with his younger brother Eagle. Unable to let go of his grief and consumed by the mysteries that still surround the loss of his brother Eagle, Hinmatoom (Thunder) strikes an accord with an unfamiliar figure in exchange for recovering EagleвЂ™s remains so that he can be given a traditional burial and both can find peace. EndingДЄfter discovering the fate of his brother, Thunder contemplates the future and mourns the loss of Eagle but, with his death avenged, the soul of Eagle can finally rest in peace forever. The Chief has no dreams of glory, taking up Ultratech's challenge with nothing but vengeance and a primal justice in mind. Thunder enters the contest in order to uncover the mystery surrounding his brother's disappearance in the previous year's tournament.Д®xtended long months have passed since the previous year's Ultratech tournament, and despite the wide-ranging searches of his tribe's supernatural phoenix allies, the Chief's beloved but overambitious younger brother has failed to return in either triumph or defeat.ДЄfter much agonizing over the matter, and to great protest from his tribes folk, Thunder decides that he must suspect the worst concerning Eagle's fate, and pacifies his people by nominating himself as avenger. His tomahawks appear a little more traditional and less manufactured. He wears an Indian Headress and a Nez Perce bear claw necklace and green pants with two belts, shin-guards and combat boots. His face is covered in black, yellow, and white war paint, almost completely obscuring his skin. Still bare-chested but no longer wearing gloves and lacking his original Mohawk, he now has war paint done in the style of a raven, with white paint adorning his hands and upper arms, along with parts of his face and neck.

In Killer Instinct (2013), Thunder gets a redesign, along with a more accurate tribal identity. He has black war paint around his eyes, black tattoo lines along his shoulders and a Mohawk for a hairstyle, along with earrings on his ears. In the original Killer Instinct, Thunder is a massive red-skinned Native American, bare-chested, only wearing a pair of camo pants, green boots and gray gloves.

Thunder killer instinct wiki