PHOTOS | Triad Twins Tackle Life Like Seahawks Griffin Twins

Royce and Kiyan have been inseparable since birth. Their looks are identical in all but one way.

Royce was born with Fibular Hemimelia, the most common limb abnormality in children.

Royce walks post-amputation.

Royce and Kiyan with parents RaShanda Penn and Zach Moore

Royce and Kiyan with Dr. Bettina Gyr, who performed Royce's amputation

Royce and Kiyan with Dr. Tony Saia, who created Royce's prosthesis

Royce wears a prosthetic leg.

Royce likes football and Kiyan likes painting

Royce and Kiyan say they're best friends.

Time to reveal a surprise!

The Seahawks Griffin twins surprise with a video.

Royce scores a touchdown!

Royce tackles life as it comes.

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