Disgaea 2 PC

To get the Tink ending, Level Tink to Lvl 1000+ and defeat the final Boss with him landing the final blow.

To get this ending, you need to have 99+ Ally Kills AND Felonies, one of the Ally Kills must be Rozalin.
Then proceed to kill Rozalin after you defeat the End Boss.

After beating Prinny Baal and his 4 Baals, you need to find the Prinny Baal Lord of Uber on the Land of Carnage on levels 91+
(He looks like a regular Primmy Pirate but its way tougher) and then get the Bill approved for the Battle, and of course, defeat him.

He cant be damaged by the same special attack twice.

The Yoshitsuna can be obtained from stealing it from an Item God in a Item World of a Legendary Rank 39 Sword "Excalibur".

Remember that to successfully steal, its best to be 150Levels above your target and steal from their back.

Normally you only have 50% chance to steal.

The Exception to that is the thief class which can steal with half the levels of the target.

If you fail, lift up your thief with another character to save your stealer/thief from harm for a turn then try again.

This cannot be done in Holt Village (the normal item world gateway) you will need to do this from The Land of Carnage.

You can level the weapon to Level 99 in Holt Village but if you get to level 100 there, the Item God wont have the Yoshituna.

You can unlock the Land of Carnage by collecting all 16 treasure maps from pirates you encounter in Item Worlds.

You can see a record of which bosses you have killed in Dark Records.
You can access the Dark Records by talking to the guy with the pen and paper icon over his head.
Remember, you need to go the second,third and fourth pages of Dark Records.

For some bosses, you will need to save and restart the game, check out my steam guide for suggestions on how to tackle the game to restart the less times possible:

https://steamcommunity.com/sharedfiles/filedetails/?id=975443103

Asagi, Priere and Majorly cant be fought on your first cycle, you need to be in New Game+ so you can see their Bills. For this reason, take care of your felony count until you beat them.

You can fight the Kurtis bosses just fine in your first go, make Adell a Senator and use the Defender of Earth cellphones to unlock their proposals.

Also, you need to have enough Mana to see some Bills, keep this in mind.
The most expensive Bill costs 9999 Mana.

Here we go!!!

1. Item General defeated.
2. Item King defeated.
3. Item God defeated.

You will get these bosses defeated when you try to max out a Rank 39 or below golden item.

4. Item God 2 defeated - Defeat an Item God 2
   He can be found on the 100th floor of a rank 40 item.

5. Etna defeated.
   Beat her on stage 3-4 Tragedyland. Need to save and restart.

6. Rozalin defeated.
   See the Endings section on conditions to get this. You will need to save and restart.

7. Prism Red defeated
   After Shinra Tower, pass the Bill to fight them again and win.

8. Asagi defeated.
   Achieve 33 felonies to get the Bill that unlocks this fight. As a bonus, if you get her to Lvl 1000, you can pass another Bill to upgrade her.

9. Robo Kurtis defeated.
   To get this Bill, use 3 "Defender of Earth" cellphones on the same cycle.

10. Robo Kurtiseses defeated.
    To get this Bill, use 3 "Defender of Earth" cellphones on the same cycle AFTER you defeat the first Robo Kurtis.

11. Mid-Boss defeated.
    Defeat this boss between Chapter 1-9.
    You will need 20+ Hours of playtime to see the Bill.
    You will need to save and restart after the ending

12. Priere defeated.
    Need 66+ Felonies and be between Ch 1-9, try to fight her before going for Crime ending #1.

13. Marjoly defeated.
    Need 99+ Felonies.

14. Flonne defeated.
    Requires 40+ hours of playtime and be on Chapter 12 or 13.
    Defeat the Battle after passing the Bill to fight both Flonne and Laharl.

15. Laharl A defeated.
    Defeat Laharl in Shinra Tower. (Chapter 11)
    You will need to save and restart after the ending

16. Laharl B defeated.
    You get this along with beating Flonne (see #14)

17. Laharl C defeated.
    After beating Flonne and Laharl B (#14&#16), as Senator Adell pass Flonne's request.

18. Laharl D defeated.
    On a new cycle, after recruiting Laharl. Pass this Bill available on Chapter 1 only.
    You will need to save and restart after the ending

19. Overlord Zetta defeated.
    You need to clear 10 dark world maps to get his Extra Stage.

20. Baal defeated.
    Complete 25 Dark World maps to unlock his Extra Stage.

21. Prinny Baal defeated.
    After beating Baal return to the Viewing Room to fight this Prinny along with 4 Baals.

22. Mao defeated.
    To fight him, you need to reach the Land of Carnage and have beaten Raspberyl.

23. Raspberyl defeated.
    To fight her, you need to have completed 30 Dark World stages and have beaten Champloo.

24. Champloo defeated.
    Complete Axel mode and restart Adell mode.

25. Pringer X Go defeated.
    After beating Prinny Baal and his 4 Baals, you need to find the [Prinny Baal; Lord of Uber] on a Rank 40 Item World in the Land of Carnage on levels 91+ (He looks like a regular Prinny Pirate but its way tougher) and then get the Bill approved for the Battle, and of course, defeat him.
    He cant be damaged by the same special twice.

26. Unleashed Pringer defeated.
    After beating Pringer X Go, pass the "Unleash the Land of Carnage" bill and fight 8 copies of Pringer X Go, of course, each copy, has 40MILLION Stats.. yes.. of EVERYTHING.

So screw that, if you leave this EX Boss until the end, you will only need to kill ONE instead of EIGHT.

So make sure Pringer X Go! Unleashed is your last boss to unlock the achievement then use all our tricks:

Boost yourself with Magic Boost/Braveheart, if you use elemental magic/skills, use Magic knights to lower the enemy elemental resistance. Bring out story characters that buff your stats, like Miabel, Rozalin, etc. If it doesnt die in one hit, make someone pick your heavy hitter up so it doesnt die and you have an extra turn.

The moment you kill one of these, the 26 Ex Boss requirement will be complete and the achievement will be unlocked, congratz! You got the hardest achievement of the game!