|Unlockable ||How to Unlock|
|Bad Ending||Defeat the Item God on the 100th floor of a legendary item.|
|Dark Assembly||Persuade by Force 100 times in the Dark Assembly|
|Etna Heroine||Kill 100 or more allies before Episode 5's Ice Queen Battle then choose to kill Maderas.|
|Flonne Tradegy||Kill 50 or more allies before Episode 3 and the Lavish Hall battle. Choose to Kill Hoggmeiser.|
|Good Ending||Beat the game without killing allies|
|Overthrow Earth||Clear human world|
Enter the following code during the title screen, with the pointer on "New Game." If you're successful, you'll hear Etna's voice.
|Code ||Effect |
|Triangle, Square, X, Triangle Square, X, Circle||Unlock Etna Mode|
|Unlockable ||How to Unlock|
|Angel||Female Cleric, Knight and Archer all at level 100 or higher.|
|Archer||Level 3 or higher in Bow Weapon Mastery.|
|EDF Soilder||Level 30 or higher Gun Weapon Mastery.|
|Galaxy Mage||Level a Prism Mage to Level 50.|
|Galaxy Skull||Level a Prism Skull to Level 50.|
|Knight||Female Warrior and Female Mage each at level 10 or higher|
|Majin||Male Warrior, Brawler, Ninja, Rogue and Scout all at level 200 or higher.|
|Ninja||Male Fighter and Male Warrior with a total level of 10 or higher.|
|Prism Mage||Level a Star Mage to Level 35.|
|Prism Skull||Level a Skull Mage to Level 35.|
|Rogue||Both Fighter and Warrior, Males or Females, each at level 5 or higher.|
|Ronin||Female Warrior and Female Fighter with a total level of 10 or higher.|
|Scout||2 Fighters/Warriors, Males or Females, each at level 5 or higher.|
|Star Mage||Get 1 Fire,Ice and Wind Mage and level all 3 of them to level 5.|
|Star Skull||Get 1 Fire,Ice and Wind Skull and level all 3 of them to level 5.|
Uncover Etna's Room
To open Etna's Room, you must find two secret button's in Laharl's Castle. The first is behind the Throne and the second is found inside the Skull that is seated on the RosenQueen's Store Counter. Once you've pressed these two buttons, go to the room where Longinus, Ghoss, Stigma, and Gargo hang out. Press X in the corner behind Stigma to uncover Etna's room.
Get any character, purchase or get weapons that add HP and make sure you have a good amound of money. Equip, then un-equip the chosen items, then re-equip again. After doing so, the selected character will end up with it's original HP and have the MAX HP from the equipment. Go to the hospital, pay the person to heal your character, and it will add the HP Points into the total. Redo these steps and get your points in the hospital higher and higher. Eventually, the hospital rewards you with an item for the amount of points recieved. (This cheat works with HP, SP and Deaths. HP = HP Equips, SP = SP Equips, Deaths = All-around statted item). Eventually, you'll recieve equips that add much needed Health, SP or stats.
Fight Zetta, Adell and Rozalin
You can fight these three characters in the game.
Zetta-(Makai Kingdom) Max the 'more stronger enemies' bill then talk to the gate keeper. She says something powerful is going on in the Stellar Graveyard. then head to the promidial soup in the stellar graveyard. Watch the scene than fight your way through him.
Adell-(Disgaea 2) Finish Cave of Ordeal, when you reach demonhall mirror, fight all the enemies in there. Enemies will keep on changing and actually get stronger. The next time you go in to the demonhall mirror, there will be a scene. It's Adell!!
Rozalin-(Disgaea 2) After you fight Adell, go into the demonhall mirror once more, there will be a scene agian. This time you will fight her but with Adell.