This mission introduces a new enemy, the Octoball.
Collectibles
Sunken Scroll
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We Octarians dwell in a world deep underground. The individual caves in which we live are connected by a network of transport devices known as kettles. Wow... You learn something new every day!
Location: The Sunken Scroll can be found after the second checkpoint. Swim up the wall onto the grated walkway, turn the corner, and then drop through the grate onto the platform below. You will find a small crate and a launchpad. Destroy the crate to reveal Sunken Scroll 2, collect it, and then turn around and use the launchpad to return to the grated walkway.
Armor
Location: After the fourth checkpoint, the armor can be found sitting on top of a Squee-G.