Hah, just finished Dangan Ronpa. It took about 21 hours according to my save file. I won't spoil anything but I really enjoyed the game. I've read a lot of people talking about the first game being a lot of guess work, and I disagree; I've just about figured out everything about the game and the final chapter was basically confirming my thoughts. If anything I feel the game throws away too many hints, unlike Zero Escape where I was like WTF just happpened lol.
I've messed around a bit with School mode, but I don't think I'm going to bother with it( I'm just going to win over Kyoko and Hina ^^ ) or collecting all the presents.
The ending makes me really interested in Dangan Ronpa : Another Episode though.
Some news Natural Doctrine Multiplayer detailed
Basically, the game is cross play, cross save between PS3, vita and PS4
http://gematsu.com/2014/02/natural-doctrine-multiplayer-detailed
