Original NND URLs: http://www.nicovideo.jp/watch/sm805232 Promotional video with a playthrough of Salamander.
917 viewsOriginal NND URL: http://www.nicovideo.jp/watch/sm804450 Konami promotional video featuring Gradius.
837 viewsOriginal NND URLs: http://www.nicovideo.jp/watch/sm805490 http://www.nicovideo.jp/watch/sm805627
877 views