The Experimentorium is the nineteenth mission of Splatoon 2 single player modeOcto Canyon and is the first mission to take multiple routes to proceed into the mission.
Salmonids are known to keep their weapons in tip-top shape. The frying pans they wield have often been passed down from generation to generation. You can see the unwavering pride of these fierce warriors in their (somewhat crazed) eyes.
Location: After defeating the shielded Octotrooper enter the center launchpad. On the second area with Grapplinks hit the splat-switch on the third grapplink. As you fall, you will land on a platform with a launchpad. The launchpad will take you to the first Grapplink and you can continue. At the end of the area you will find the Sunken Scroll on a grate.
Sardinium
Location: At the first checkpoint in the area accessed from the left-most launchpad, there is a spinning block with two inkable switches. Inking one will cause a platform to rotate upright, allowing the player to progress. Inking both will cause the block to stop spinning and lower, allowing the player to jump onto the block to reach a crate containing the Sardinium.
Armor
The Experimentorium has 3 pieces of armor to collect.