The main-story final boss is Salmonarch in the Throne Room, unlocked by progressing through the campaign; the post-game secret final boss is Lord Saltimatum on floor 100 of the Bottomless Buffet after finishing the story.
Splatoon Raiders uses “final boss” in two different ways. If you are finishing the campaign, you are looking for Salmonarch; if you are chasing the secret-ending route after credits, you are looking for Lord Saltimatum.
Salmonarch and Lord Saltimatum locations
| Boss | Location | Unlock |
|---|---|---|
| Salmonarch | Throne Room | Progress through the main campaign |
| Lord Saltimatum | Bottomless Buffet floor 100 | Finish the story, then clear the Bottomless Buffet to floor 100 |
That split matters because Salmonarch is the campaign climax, while Lord Saltimatum belongs to the endgame challenge inside the Great Salmon Mess Hall. Treat them as two separate goals, not two names for the same encounter.
How to reach Salmonarch in the Throne Room
Clear the main temple route
Progress through the campaign across the Spirhalite Islands until the final chapter opens.
Enter the Throne Room
Go into the Throne Room when the main story points you there.
Start the Salmonarch fight
Begin the final mission encounter against Salmonarch; no separate side-content unlock is needed.
The known route to Salmonarch is direct story progression. The dossier does not name a separate side quest, collectible gate, or optional boss requirement for opening the Throne Room.
What happens in the Salmonarch fight
The fight begins with a surfboard approach before turning into a platforming-heavy boss battle. You use Bot Hop to cross between platforms, deal with Salmonids, and collect Power Eggs as the arena shifts around Salmonarch.
Once you have the opening, use Drill Attack on the boss’s heads. In the last phase, the finish moves away from egg-gathering and toward reaching the Hideout Ship, climbing to the crane, and using it to end the battle.
How to unlock Lord Saltimatum in Splatoon Raiders
Finish the story
Defeat Salmonarch and clear the main campaign first.
Go to the Great Salmon Mess Hall
Enter the Bottomless Buffet from the Great Salmon Mess Hall.
Clear to floor 100
Keep pushing through the Bottomless Buffet until you reach floor 100.
Fight Lord Saltimatum
Defeat Lord Saltimatum to take the secret-ending path.
Do Salmonarch first before farming the Bottomless Buffet, because Lord Saltimatum is tied to the post-game route.
Bottomless Buffet is the long-form endgame climb, so this is the route for players who have already rolled credits and want the “final-final” boss. The unlock is not about finding a hidden door in the campaign; it is about clearing the full 100-floor Buffet run.
Ending rewards from each boss
| Boss | Ending |
|---|---|
| Salmonarch | Main story good ending |
| Lord Saltimatum | Secret ending and special Relic reward |
Salmonarch closes the main story path and leads into the good ending. Lord Saltimatum sits after that as the secret-ending boss, with a special Relic reward tied to the route.
Frequently Asked Questions
Is Salmonarch or Lord Saltimatum the real final boss?
Salmonarch is the real main-story final boss. Lord Saltimatum is the post-game secret final boss for players continuing beyond the campaign.
Where is the Throne Room in Splatoon Raiders?
The Throne Room is the final story arena reached at the campaign climax after the main temple route, including areas such as Bowtlode Temple, Stonuvan Temple, and Coohla Temple.
Do you need to clear side content to unlock Salmonarch?
No side-content requirement is attached to Salmonarch. Keep advancing the campaign until the final chapter sends you to the boss.
How do you unlock the secret final boss?
Clear the main story, then complete the Bottomless Buffet climb through all 100 floors. Lord Saltimatum waits at the end of that route.
Does changing difficulty affect final-boss unlocks or loot?
Difficulty changes how strong the Salmonids are. It does not change the loot you get, so use the setting that makes the clear manageable.
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