Fossil Fighters known in Japan as Bokura wa Kasekihorida (??????????? lit. "We Are Fossil Diggers"[2]?) is a 2008 video game developed by Nintendo SPD Red Entertainment M2 and Artdink and published by Nintendo. It was first released in Japan on April 17 2008 and was later released in North America on August 10 2009[1] and in Australia on September 17 2009.[3]On September 10 2010 a sequel titled Super Kasekihorida was announced[4] and it was released in Japan on November 18 2010.[5] Near the end of Nintendo's E3 2011 conference it was announced that it would be released outside of Japan originally titled as Super Fossil Fighters but later changed to Fossil Fighters: Champions. It was released in North America on November 14 2011. At E3 2014 Nintendo casually announced the first entry on the Nintendo 3DS Fossil Fighters: Frontier released in North America in 2015[6] the game has been available in Japan since February 2014.[7]