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American Ninja Warrior - It's Never Too Late to Be a Ninja (Digital Exclusive)

American Ninja Warrior - Revealing "Arthur Hickenlooper" (Digital Exclusive)

Did 81 Year Old Arthur Hickenlooper Compete on American Ninja Warrior

81 Year Old American Ninja Warrior EXPOSED! Arthur Hickenlooper, Real Warrior or Big Faker?

Did 81-Year-Old Arthur Hickenlooper Compete on 'American Ninja Warrior?'

Fun American Ninja Warrior Compilation

Hickenlooper says voters 'reckless' in pot vote

Hickenlooper: 'A lot of things on the table'

This 256 Year Old Man Broke His Silence Before His Death… And Revealed An Incredible Secret

Kent Weed & Arthur Smith on why "American Ninja Warrior" is so popular - 2016 Primetime Emmys

American Ninja Warrior - Life's Obstacles (Digital Exclusive)

American Ninja Warrior - Best Rookie Runs (Digital Exclusive)

Arthur benedetti ninja Warriors

‘Grandpa Ninja’ Looks Back On American Ninja Warrior Experience - KHTS Features - Santa Clarita

NINJA WARRIOR GETS CAUGHT CHEATING

50 Year Old American Ninja Warrior Cliffhanger drop

Rich King's Shocking Stage 2 Fail - American Ninja Warrior 2009

60 Year Old Ninja Kicks My Ass

The Oldest Ninja Warrior

Sen. John Hickenlooper On Trump's Funding Freeze