Octotrooper Hideout is the first mission in Octovalley and introduces the player to several new mechanics that will be used throughout Octo Valley.
Launchpads are introduced as soon as the player enters the first mission and are used to navigate between the different checkpoints of the mission.
Vaults introduced in this level and typically contain launchpads, but they can also contain mechanics such as inkrails. Vaults need to be unlocked with keys, which are found in the nearby vicinity. In the mission Octotrooper Hideout, two vaults can be found. The first is located at Checkpoint 6 and is being guarded by an Octotrooper. The second vault is found at Checkpoint 6 and at first it appears to be unguarded, but as soon as you approach it with the key 2 Octotroopers and a Twintacle Octotrooper will appear.
keys like vaults are introduced in this level and are used to unlock vaults. Most keys are either hidden or guarded by various Octarian enemies. 2 keys can be found within Octotrooper hideout. The first is located toward the back of Checkpoint 6 and the second key is located at the far right of the Final Checkpoint.
You will face three Octotroopers: one on top of a box and two guarding behind. The brown boxes do not contain anything, but the reddish ones with a white label on contain Power Eggs.
After defeating the troopers, grab all the power eggs around. Power eggs can be obtained by walking close to them or shooting them.
There is a hidden power egg box behind the ramp.
Swim up the ramp by covering it with ink and transforming into squid form.
Fill in the trail already left for you, then swim down to a barricade to collect one power egg. Remember you can shoot to the other side to get the other power egg.
Like with Checkpoint 1, you need to distract the trooper with a bomb so they turn around, then shoot their back. Killing the trooper reveals the launchpad.
Trail down to the end of the walkway, grabbing the three eggs and smashing the box containing the armor.
When collected, smash the box to the left and splatter the trooper circling the vault behind.
Cover as much of the ramp to your right as you can, then swim up and spatter the trooper standing guard on the right. Collect the egg on the way up.
At the top of the ramp is four troopers guarding the key. Remember the troops lose where you are when you dive into ink. Use Bombs to distract or simply shoot them all after destroying the boxes. There are two power egg boxes on the far right.
After splatting them, grab the key by covering the ramp with ink and swimming up.
Go back to the vault with the key and approach it to unlock it. It reveals a launchpad.
Final Checkpoint
There are two troopers circling the Zapfish. One has front-armour, the other does not. Fire down the ramp towards them, collecting the three power eggs on the way.
As before, distract the one with armour with bombs. After splatting both, destroy all boxes around. The stack of three (two red on top of brown) has the key.
When you approach the vault, three more troopers spawn in. Use a bomb or simply splat them. Unlock the vault and launch using the unlocked launchpad.
You are thrown to the top of the tower. Destroy the shield by firing at the Zapfish and then touch it to complete the mission!
"Since time immemorial, a rare type of electric catfish known as the Zapfish has been prized by Inkling society as a source of energy. In fact, the entire city of Inkopolis is powered by a single 100-year-old Great Zapfish!"
Location:Octotrooper Hideout's Sunken Scroll can be found on top of a pillar after Checkpoint 5. It is located inside a crate, and discusses Inkopolis' power source, Zapfish. It also depicts an image of the Great Zapfish, which has been captured by the Octarians.