Arriving in the second area, Twilight and her friends began picking up readouts of other weapons they could add to their arsenal. Callie reported that this area and all others after it would require saving six zapfish before accessing the boss. In the first kettle, The friends found what looked like huge paint rollers.
"GRAB THOSE HERO ROLLERS AND ADD THEM TO YOUR ARSENAL!", Callie yelled excitedly.
Without hesitating, they grabbed the rollers and Clauds demonstrated how to use them right away. They came across small indestructible fish called squee-gs. They made it a challenge to climb walls because they would clean away any ink that was on the wall. They also came across Octohurlers, a type of Octarian that would spit out something called "rolonium". This was five inflated tubes bundled together. Rainbow smacked one of the bundles with her roller and figured out it could be deflected back. After rescuing the zapfish, they moved on to the next kettle and met the Octocopter and the Octosniper. The Octosniper was a very annoying enemy because he would hone in on the Main Six as soon as he saw them. They were able to sneak up on him and take him out, which was relieving. They encountered spreaders in the next kettle, which were automated brushes that smeared ink wherever they moved. It was easy to get past them, but they were not prepared for the Octostriker in the third kettle. He could target them from far out and shoot a massive amount of ink.
"Hide in your ink so you can't be targeted.", Agent 3 and Clauds advised from their experience.
Upon leaving the kettle, the six noticed that the rest of the area was partially flooded and two kettles were underwater. Callie became skittish because she knew that inklings and octolings could not swim. Rarity thought now was a good time to ask how Callie had injured her left upper arm and right lower leg.
"Clauds, I have a question. How did Callie injure her arm and leg? The sunken scrolls we found say that inklings have no bones."
"When she was escaping, she tripped and fell down. Her right leg got snagged on a tangled rope, and a mass of water and ink poured down, weakening her leg. She was almost back to the base camp when an Octotrooper shot a mixture of water and ink at her and hit her left arm. The water partially dissolved her muscles."
Agent 3 showed up wearing a suit that was different than what she was wearing earlier. She also carried seven more suits.
"Put this on. It is inkling scuba gear, something I have worked on for a while. It will protect you from the water.", she said.
The friends put the gear on and then hurried to the next kettle. They found the Hero Dualies in the fourth kettle. These were pistols held in each hand, and they could also do dodge rolls with them. They also discovered inkfurlers, long rolls that would unroll to create a pathway. If enemies shot the other end, they'd start rolling back up. The end would also jiggle and then roll back after a short amount of time. After saving the zapfish in this kettle, they had to swim underwater. The Hero Charger was found in the fifth kettle, and they also found propeller lifts. The Hero Charger could charge a shot and then release it strongly. The sixth kettle involved other octolings that were not on the same side as the octolings in Inkopolis. When the boss kettle opened up, they picked up a signal that Agent 3 recognized in a flash.
"Leave this place, I don't want to fight you."
"That's Agent 8.", Agent 3 gasped.
"Why would Agent 8 say to leave? I thought the agents were on our side.", Fluttershy asked.
"She must have been brainwashed like I was.", Callie guessed.
They went inside anyway, and Agent 3 joined them. Sure enough, there stood an octoling with goggles over her eyes.
"I TOLD YOU TO LEAVE!", she hissed.
Agent 3 told everyone to restrain Agent 8 so she could be brought back, then jumped onto a platform up above. Clauds and the six friends charged onto the platform and started fighting. Three times, they dodged Agent 8's attacks and special weapons and restrained her so Agent 3 could shoot her goggles. Agent 8's attack moves became faster and she used other weapons with each time the battle got harder. After the third strike from Agent 3, Agent 8's goggles broke off and she was dizzy for a few minutes. Returning to her senses, Agent 8 apologized for trying to hurt the friends and then joined the quest to rescue Marie and the Great Zapfish. Upon leaving the boss kettle, everyone saw that Callie was no longer on the scooter. She was walking with a crutch under her right arm. This meant that her leg had healed somewhat, but not completely. Becoming more confident that they could succeed, the Main Six continued to the next area.