Roller-coaster riders in New Jersey were left stranded Friday when their ride climbed more than 200 feet and stopped dead in its tracks, Pix 11 reports. Park personnel at Six Flags amusement park in Jackson reached the passengers via access stairs, released them, and walked them back down. Nobody riding Nitro at Great Adventure got hurt, but they did miss an 80 mile-per-hour plunge that USA Today ranks the nation's ninth-fastest, People reports. Park officials blamed a power outage for the delay. See NBC New York's video of the passengers' walk down, or read about a family arrested in an amusement park brawl.