Honestly, if you're anything like me, you probably spent your first few hours in Stellar Blade just gawking at the combat. But then you realize the real endgame isn't just killing Naytibas—it's the fashion. You’ve likely heard whispers about the "secret level," and yeah, it’s real. Eidos 9 isn't just a side trip. It's home to some of the most distinct looks in the game, but getting there is half the battle. If you mess up your relationship with Lily, you’re basically locked out of these threads until New Game Plus. That sucks.
Getting the Stellar Blade Eidos 9 outfits requires more than just showing up. You need to be a completionist. Not a "collect every single blade of grass" completionist, but you definitely need to pay attention to that little progress bar in the top right of your screen whenever you pick up a memory stick or a document.
How to actually unlock Eidos 9
Most people think you just have to finish the game. Wrong. You have to fill Lily’s affinity meter to 100% before you leave for Spire 4. This is the "Point of No Return." If that bar isn't full, Adam just flies you straight to the end, and you miss the sunken city entirely.
To fill it, you’ve basically got to be a digital archeologist. Pick up every data slate in Xion. Do the side quests for the NPCs like Kaya or Roxanne. Every bit of "information" you find about the old world feeds Lily’s curiosity. Once it hits 100%, she’ll interrupt the flight plan and ask to visit her old atelier. That’s your ticket to the fashion show.
The Big Three: Finding the Nano Suits
There are three main outfits tucked away in this watery graveyard. They aren't just handed to you on a silver platter, either. You’ll be dodging "toxic" water that kills Eve in roughly five seconds. It's stressful.
1. Planet Diving Suit (6th)
This one is found pretty early in the district where the first batch of Cocoons are hanging out. You’ll see a bunch of submerged cars and a building with marble pillars. It looks fancy, or it used to.
Don't just jump in the water and leisurely swim. Dash. You need to reach the yellow ledges on the left side of that marble building. Climb up to the roof, find the room with the chest, and boom—you’ve got the 6th Diving Suit. It’s sleek, functional, and definitely has that "I’m here to save the world" energy.
2. Punk Top
If the Diving Suit is professional, the Punk Top is pure rebellion. I love this one. It's located in the massive parking tower area.
Once you’re done clearing out the parking lot, look for a "Sunset" sign on the freeway. You aren't staying on the main road, though. You need to find a way to the lower side of that parking structure, down near the shoreline. There's a shipping container sitting there. Crack it open for the Punk Top. It's basically a vibe check for Eve, and she passes.
3. Motivation
Where is your motivation? Sorry, had to do it. This suit is the reward for the final stretch of the level. After you clear the Cocoons and Lily tells you to head to her atelier, you’ll find yourself on some roller coaster rails.
This part is actually fun. You’re "grinding" the rails like a high-octane skater. At a certain junction, you’ll see a building that’s almost entirely underwater. Only the roof is sticking out. You’ve got to time your jump to land on that rooftop. The chest is right there. It’s a white and orange ensemble that feels very "magical girl" but with a sci-fi edge.
Why the NG+ and NG++ Variants Matter
Here is the thing: one playthrough isn't enough. Not if you want everything.
If you go back to Eidos 9 in a New Game Plus run (and again in NG++), those same chests don't give you the same suits. They give you variants. For example, the Hydrangea suit and the War Suit are tied to later runs.
- First Run: You get the base suit.
- Second Run (NG+): You get a color-swapped "V2" version.
- Third Run (NG++): You often find entirely new designs like the Planet Diving Suit (6th) V3.
It’s a bit of a grind. Honestly, it’s a lot of a grind. But if you're a completionist, you’re already committed to seeing every ending anyway, so you might as well grab the clothes while you're at it.
Don't Forget the Fishing Spot
While you're at Lily’s Atelier, don't just grab the cutscene and leave. It’s one of the best fishing spots in the game. It’s quiet, the "salt acid" ocean is beautiful in a depressing way, and you can catch some rare stuff there. Just a little pro tip for the anglers out there.
Practical Steps for Your Fashion Run
If you're currently sitting in Xion wondering if you should pull the trigger on the next story mission, stop. Check your map.
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- Check Lily's Bar: Look at the top right of the screen. If you don't see a percentage, pick up a document. If it's not at 100%, go back to the Wasteland or the Great Desert.
- Clear the Bulletin Board: Many quests provide the documents needed to boost affinity.
- The Point of No Return: Once you talk to Adam to go to Spire 4, he will ask if you're sure. If the prompt for Eidos 9 doesn't trigger immediately after that, you failed the affinity check. Alt-F4 or close the game immediately to try and save your save file.
- Crafting: Remember that most of these are "schematics." You still need to head to a camp and use Polymer Materials to actually wear them. Stock up on Extreme Polymer; you’re going to need a lot of it for the high-end Eidos 9 gear.
The water is deadly, the Naytibas are annoying, and the platforming is janky. But the outfits? Totally worth it.