Most RPGs are free-roaming affairs: Between the scripted cutscenes and predetermined plot points that take place at designated locations, you are free to Take Your Time, get Sidetracked by the Gold Saucer, and generally go Dungeon Crawling anywhere your current abilities allow (assuming it isn't blocked off by a Broken Bridge). Can be considered a gentle form of Railroading, in that the player has no choice except to Follow the Plotted Line. When a Plot Tunnel occurs during the final act of a game, it becomes the Point of No Return.