Home News Ninja Gaiden 2 Ninja Gaiden 2 demo now available in the US and Canada Image credit: VG247 News by Patrick Garratt Founder & Publisher (Former) Published on June 7, 2008 Follow Ninja Gaiden 2 According to the Major, the Ninja Gaiden 2 demo that released in the rest of the world this week is now available in North America. So hooray to that.