User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-70.54.113.231-20120121220928/@comment-70.54.113.231-20120122225225

http://www.siliconera.com/2012/01/17/kingdom-hearts-3d-dream-drop-distance-has-a-multiplayer-dream-eater-battle-mode/

If this is the source, it's not talking about an Adhoc Party feature. It's just talking about adhoc itself.