 Fire Emblem : New Mystery of the Emblem : Heroes of Light and Shadow is a tactical role @-@ playing game developed by Intelligent Systems and published by Nintendo for the Nintendo DS handheld video game console in July 2010 . It is the twelfth entry in the Fire Emblem series , and a remake of the Super Famicom title Fire Emblem : Mystery of the Emblem . The story is based on the original story content from Mystery of the Emblem , while including a customizable Avatar as the main character alongside Marth , the protagonist of Shadow Dragon and the Blade of Light . New Mystery of the Emblem also adapts the story content from the Satellaview title BS Fire Emblem into four additional story episodes dubbed the " New Archanea Chronicles " . 
