Splatoon 2/Octozeppelin Invasion

The Kettle for this mission is on a tall tower in the back right corner of Suction-Cup Lookout. To reach it, find a sponge in the back of the area, ink it, and swim up. Jump to the grate across from the sponge, and ink and swim up the tower the grate is hanging from, and then ink and jump to the tower with the Dash Pad. Being launched from the Dash Pad will land you on some grating, ink the boxes just above, and find the Kettle.

Beginning area
Get onto the blocks in front and shoot the Grapplink on the other side. Shoot the next Grapplink above with the help of the Gusher if needed. The player will then be put to the same level as the Octozeppelins. Either strafe on the sides of the passage or duck in the ink, activate the Gusher if present, and shoot the Grapplink above. The launchpad to the first checkpoint is at the end of the path.

Checkpoint 1
Go to the end of the inked path, and shoot the Propeller to bring the platform towards you. Board it and shoot it again to align with the stable platform ahead with barriers. Climb up the structure with the help of Grapplinks, and defeat Octotroopers on the way. After the second Grapplink, hit the propeller ahead and board the platform, splatting the Octotrooper if needed. Dodge the Octozeppelins, shoot the second propeller if needed, and board the next platform. Now align the platform with the stable one ahead, splat the Octotrooper if necessary, dodge the Octozeppelins, and Super Jump with the launchpad on the platform.

Checkpoint 2
Climb up the structure ahead with Grapplinks and splat the Octotroopers if needed. Hitting the second Grapplink will bring you to a platform periodically swept through by Octomissiles. Use the barriers as cover, or splat them by the tentacle on top. The key is in the crates to the left, while the vault locking up the launchpad to the next checkpoint is to the right. To reach the Sunken Scroll, get to the left edge of the platform that is swept near where you land from the Grapplink. You should see a platform with a Ride rail. Jump down to the platform, and activate the Ride rail. There will be three crates and a launchpad that will take you back to the lower area. One of the crates will hold the Sunken Scroll.

Checkpoint 3
Shoot the propeller platform ahead to bring it down. Dodge the Octozeppelins and get atop the wall to the right. Bring the next propeller platform closer by shooting the propeller, while dodging the Octomissiles at the same time. Board the platform, shoot the propeller more, and shoot the Grapplink above to reach the final checkpoint.

Final checkpoint
Shoot the propeller below so you are able drop down onto the platform. Shoot the propeller so it moves all the way to the end, and shoot the next one to the right, bringing the Octozeppelin launcher closer. To avoid danger, shoot the Octotrooper on the wall. Hit the Grapplink above before the Octozeppelin strikes, and the Zapfish is on top.