American Ninja Warrior

American Ninja Warrior is a sports entertainment competition spin-off of the Japanese television series Sasuke, in which competitors try to complete a series of obstacle courses of increasing difficulty called "stages". The series began on December 12, 2009, in Los Angeles, with the top 10 competitors moving on to compete at "Mount Midoriyama" in Japan. Beginning with season 4, competitors travel to the Las Vegas strip to compete on a nearly identical "Mount Midoriyama" course.