Etna is still in charge of the Netherworld while Laharl is working on his reincarnation. One night, Etna goes berserk due to the fact that someone broke into the Overlord's Castle and stole her panties. After causing mayhem, Etna sends 1000 Prinnies out to find the culprit and return her stolen underwear.
Features:
- New Power-Ups and attacks to make getting through levels easier such as "Prinny Cyclone".
- A "Baby Mode" for easier difficulty.
- New NPC characters such as Flonne and a Disgaea 3 Reaper.
- Use of Animated Images and 3D Models.
- The use of a Cannon as a way to get to the levels.
- More enemies such as Ghosts, Warslugs, Puppets and so on.