Thread:Nbajammer/@comment-386913-20150215033500

CobaltRanger is right: both the final series preview and Toei's site has the title as "Shinobi no 1: Ore-tachi wa Ninja da!" (Shinobi either being just general "Shinobi" or "Spy/Sneak"; while the title is obviously in homage to ep. 1 of Kakuranger)

https://www.youtube.com/watch?v=pzhMc7a5cTM (end of the preview)

http://www.toei.co.jp/tv/ninnin/index.html (Toei's site) 