dexterlablab1 on 19 December 2015
I don't have D4 or D2
But I do have Disgaea 3. The DLC isn't exactly needed. But I know if you want to know a little extra about Beryl there episodic dlc for her is worth it.
And if you're asking about this in terms of trophies, no DLC is needed to get 100% and the Plat. HOWEVER, the Prinny and Adell are good for making the trophy grind much easier to deal with.
