>>11920225
I recommend skipping NG: Dragon Sword on the DS. It just reuses NG Xbox assets, and the gameplay is nothing by swiping the touchscreen on enemies.
>>11920761
Yes, NG:Shadow wasn't developed by Tecmo, so it's a Shadow of the Ninja game at heart. Pulls in some decent versions of NES tracks though. https://en.wikipedia.org/wiki/Ninja_Gaiden_Shadow