All Sasuke Ninja Warrior fans will want to try this! There is a mini-replica of the Ninja Warrior course within an amusement park called “Muscle Park” Where is it? In Japan of course! For those die-hard Sasuke fans, this is one trip you must take.

Many Americans have attempted the course and have proof of it. Enter youtube videos…
The Ninja Forum

Muscle Park Details

Muscle Park Homepage
Because the Engrish on their site can cause trauma. (Accurate as of 11/16/2008)

Hours of Operation:
Saturdays: 11:00 to 22:00 (Kids Park closes at 21:00)
Sundays & Holidays: 11:00 to 21:00(Kids Park closes at 19:00)