<![CDATA[Yahoo! Video Games: New Features for Ninja Gaiden Sigma]]> en-US <![CDATA[Ninja Gaiden Sigma Expansion Pack Hands-on]]> 2007-9-06 <![CDATA[Ninja Gaiden DLC Fighting its way to PSN]]> 2007-8-09 <![CDATA[Ninja Gaiden Sigma Downloadable Content Announced]]> 2007-8-03 <![CDATA[ninja_gaiden_sigma_trailer_w_v_8000.wmv]]> 2007-7-03 <![CDATA[Ninja Gaiden Sigma Review]]> 2007-7-03