Alterna Space Center is located at the center of Alterna. Initially, the area is covered by a large amount of sharp fuzz and is inaccessible. After Agent 3 gathers the three treasures, they and the other members of New Squidbeak Splatoon assemble these treasures into a lawn mower-like tool, which the Captain then uses to destroy the fuzz, allowing the team to go to Alterna Space Center. However, the Captain hurts themselves in the process and the tool breaks. The members of Deep Cut then appear to make another attempt in taking the treasure back, but are told that the treasure is no longer needed and they can have it. They then help the team find Cuttlefish, who is now properly located at the top of the launchpad.
WAIT ONE HOT MINUTE! That's right... it's US! You didn't think we were going to just GIVE UP, did you? Tell me you didn't!
”
“
So! Last chance. If you don't want to tangle with Deep Cut, put down the treasure and walk away.
”
“
You expect us to believe you're just going to give us the treasure? After, well, everything? Wait... why am I fighting this? WOW, thanks! I feel kind of... not good... about each of us fighting you to the death. Our bad. And you're just GIVING us this!
”
Reaching the entrance:
“
I can't believe they turned out to be so nice. And so FAMILIAR. Where have I seen them...
Alterna Space Center's ground level seen from above while on an inkrail.
A zoomed-out view of the Space Center.
The part of the Space Center that corresponds to the entrance. The pipe used to access the hangar is visible in the dark recess to the middle-right.
The structure in the middle-right of the image, nestled between the entrance and lift, that roughly corresponds to the hangar.
The part of the Space Center that roughly corresponds to the lift. The pipe leading to The Spirit Lifter: Steerage can be seen in the lower-right corner.
Both sequences feature two songs by the game's main idol group that play throughout every section except the first one and the last two.
Both sequences feature at least one song by the game's main idol group which contains a riff on "level completed" jingle (Fly Octo Fly, in reference to TEST PASSED! and Thang Obtained in the Octo Expansion).
Both sequences can be replayed after being completed by approaching an object and interacting with it to relive memories.
The missions in this sequence are the only ones to feature Fuzzy Ooze, which otherwise only appears outside of missions in The Crater and Alterna.
During the in-between stages of this sequence, seven audio clips of Engilsh-speaking voices that seem to be recordings of rocket launch announcements can play at random.
These clips are audible throughout Alterna's Site areas, but are heard clearest in the Space Center. This suggests they are being broadcast over the Center's speaker system.