Contestants will spend 30 hours inside coffins -- sometimes with worms for company -- for the chance to win cash and other prizes in a contest at Six Flags Darien Lake. The second annual "Coffin Challenge" on Friday and Saturday is part of the park’s annual Fright Fest. Participants will compete for a $600 grand prize, season passes to the park for next year and access passes to the remaining weeks of Fright Fest. Mike Arena with Six Flags says that the contest suits the season. "A big part of