Undeniable Flying Object

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#14: Octoling Assault (Octo Valley)
Octo Valley missions
#B3: The Rampaging Octowhirl!

Undeniable Flying Object
~ Bluefin Sighting ~
Number 15
Area 3
Sheldon's Request
Items 1 scroll, 4 pieces of armor, 1 Bubbler
Music Inkstrike Shuffle
amiibo challenges Inkling GirlInkling Girl (recolor)Inkling Girl 2 Cash 1400
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Undeniable Flying Object

Undeniable Flying Object is the fifteenth mission in Splatoon's single-player mode, Octo Valley. It takes place in a modified version of the multiplayer stage Bluefin Depot.

Octo Valley

Upon entering Area 3, Mission 15 is the only kettle found inside the monument-like tower. It is also next to the ramp if players want to escape from that route instead of walking back.



Mission briefing

Undeniable Flying Object stats
Area Enemies Armor Special weapon Sunken Scroll
Beginning area 1x Octobomber
3x Octodivers
1x piece of Armor N/A N/A
Checkpoint 2 2x Octobomber
4x Twintacle Octotroopers
1x piece of Armor N/A N/A
Checkpoint 3 2x Octodivers
2x Octobombers
2x pieces of Armor 1x Bubbler Yes
Final Checkpoint 1× Octostriker
15× Octocopters


Cap'n Cuttlefish will point out that there is an Octostriker at the depot. There is ink to hide in so the Octostriker will not see you. If it does, the ink will most likely save you. All of the Octobombers will make this even more challenging, however. At the path where it splits, two Octobombers are waiting for you on both sides. The last two will attack, trying to defend the Octostriker at the end before the fight. The armor will help you in this, giving you more hits. All of the Octocopters respawn at the end, making the main enemy the Octostriker.


Sunken Scroll

This is the only existing photograph of the legendary Squidbeak Splatoon. The young man folding his arms appears to be the leader. When the picture was taken, the Great Turf War had been raging on for over a year.

Location: In the northeastern corner of the stage, hidden behind a wall. Go through the level normally, preferably sticking to the right side. When you reach the checkpoint right before the grated ramp and walkway, look towards the right behind the wall. There should be a crate containing the scroll.


Location: Before the Launchpad leading to the UFO, there is a grated walkway. The armor is in a crate at the end.

Special weapons


Enemies and Mechanics

Previously Introduced


Cap'n Cuttlefish's Quotes

Cap'n Cuttlefish
Looks like an Octostriker, Agent 3!
Cap'n Cuttlefish
Hide in the ink so you can't be targeted by the Inkstrikes!
Cap'n Cuttlefish
You're getting close to that Octojerk's UFO hideout!
Cap'n Cuttlefish
Oho! A Bubbler!
Cap'n Cuttlefish
Aye! Well done!



  • At the end of Undeniable Flying Object, after the Octostriker has been defeated and the music stops, some unusual sounds can be heard: an erratic clanking and a faint moan, which are slightly louder towards the edge of the UFO. These sounds were also heard when using Recon to explore Bluefin Depot during a Splatfest. Given Callie's comments on the stage, they may be the result of paranormal happenings or simply the deterioration of old structures.
  • The Italian name for this stage, like all UFO-related stages, references a science fiction movie - in this case, Close Encounters of the Third Kind.

Names in other languages

Language Name Meaning
Japan Japanese やっぱりUFO実在した!
~せんにゅう! ネギトロ炭鉱~

Yappari Yūfō wa Jitsuzai Shita!
Sennyū! Negitoro Tankō
UFOs Exist, Just As I Thought!:
Infiltration! Bluefin Depot
Canada French (NOA) - Le retour de la menace -
Ruines marines
- The return of the menace -
Bluefin Depot
France French (NOE) - Mine Marine -
Le retour de la menace
- Bluefin Depot -
The return of the threat
Germany German Unerbittliches Flugobjekt
über den Depot
Relentless Flying Object
over the Depot
Italy Italian Incontri imbrattanti di
terzo tipo!
Staining encounters of
the third kind!
Mexico Spanish (NOA) Objeto volador ineludible
~ Amenaza bajo el viaducto ~
Inescapable Flying Object
~ Threat under the viaduct ~
Spain Spanish (NOE) Octoabducción
en la mina costera
Octo abduction
at the coast mine