Ninja Gaiden 3 might require an online pass.

[MasterVG71782]

So, I was looking through various listings over at Gamefly and noticed something odd listed for Ninja Gaiden 3. If this is true, then it looks like another company goes through with the online pass (Tecmo KOEI) for their game(s).

Note: This game requires a Tecmo Koei Online Pass code to access online content. The Online Pass code is included with purchase, but not with rental of this title.

http://www.gamefly.com/Rent-Ninja-Gaiden-3/148070/