In years past, Koei and Namco Bandai collaborated to create Gundam Musou, a Gundam meets a hack-and-slash Dynasty Warriors style game.
Now that Tecmo and Koei have merged, the idea of a Tecmo Koei collaboration with Namco Bandai sends notions of a title with Gundam battling Ninja Gaiden ninjas or Dead or Alive girls in hack-and-slash gameplay.
We are getting nothing of the sort.
Instead, the fruit of their labour is a One Piece: Kaizoku Musou, a hack-and-slash version of the manga One Piece.
Out of all the properties that Namco Bandai owns, I like One Piece the least—not a fan at all! That explains my meh reaction. Japanese netizens, however, do seem excited. Good for them.
The game currently does not have a release date. It is slated for the PS3.