Disgaea DS Nintendo DS Cheats

Etna Mode (JP)
At Title Menu, put your cursor on New Game and press: X, Y, B, X, Y, B, A.

Unlocking Etna's Chamber
Push the button behind the throne, and another in the skull beside the weapon shop, and check the wall behind the Prinny in the same room as Longinus.

Unlocking Etna Mode via New Game +
Check out all her entries in her secret chamber before the last chapter and you'll be given the option to do Etna Mode in New Game +.

Normal/Default Ending
Beat the story normally by finishing the last chapter in Etna mode.

Beauty Tyrant Overlord Etna Ending
Pass the proposal for Alternate Netherworld and The Mysterious Seal in the Dark Assembly, then move on by defeating Priere, Marjoly and lastly Baal.

Plenair
After beating the game once talk to Plenair and select the blank option. She will automatically join your group at lv. 1.

Prinny commentary
To unlock the Prinny commentary, start a new game using new game+. The fastest way to get the prinny commentary is to lose to mid-boss to create a new-game+.

Endings for Laharl/Default Mode (JP)
Laharl/Default Mode features a whopping total of 8 alternate endings which can be unlocked!
#. Unlockable: - How to Unlock:
1. Dark Assembly Ending - Force proposals in the Dark Assembly 50 times, then finish the game normally.
2. Etna Heroine Ending - Get at least 100 ally kills before Chapter 5, Stage 4, then choose to kill Maderas when prompted.
3. Flonne Tragedy Ending - Get at least 50 ally kills before Chapter 3, Stage 4, then choose to kill Hoggmeiser when prompted.
4. Good/Best Ending - Complete the game without a single ally kill.
5. Item God Ending - Kill an Item God or Item God 2, then finish the game.
6. Midboss Ending - Lose to Midboss in Chapter 1, 4, 6 or 10.
7. Normal Ending - Finish the game with at least 1 ally kill, and do not fulfil requirements for the 7 other endings.
8. Overthrowing Earth Ending - Pass the Human World proposal at the Dark Assembly, then complete the Human World stages.

Classes
How to obtain the hidden character classes in Disgaea DS.
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 Soldier - 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 each at level 10 or higher.
Prism Mage - Level a Star Mage to Level 35.
Prism Skull - Level a Star Skull to Level 35.
Ronin - Female Warrior and Female Fighter each at level 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.
Thief - Fighter and warrior both lvl 5

Secret Characters
How to unlock the secret playable characters:
#. Unlockable: - How to Unlock:
1. Adell - Beat "Demon Hall Mirror" stage, in the Cave of Ordeals, 6 times
2. Marjoly - Get rank 9 in the dark assembly, pass the bill "Misterious Seal", and beat all the stages
3. Plenair - After you beat the game, talk to Plenair, and choose the blank option
4. Priere - Get rank 8 in the dark assembly, pass the bill "Altermate Netherworld", and beat all the stages
5. Rozalin - Beat "Demon Hall Mirror" stage, in the Cave of Ordeals, 7 times
6. Zetta - Pass all the enemy bills, then after you get Gordon into your party, beat the first stage in "Stellar Graveyard" again