Originally Posted by Mamesj
If there's one thing I'd add, it'd be a 2 player campaign. NG3 (or Ninja Gaiden 2: White or Alpha or whatever) needs a whole 2 player mode, balanced like single-player for twice the frustration. Ayane or Hayate would work nice in the second spot.
If only. Unfortunately as a genre, multiplayer beat'em ups have a long, long way to go before their combat works on the NG/DMC level.