There are a ton of references and easter eggs hidden throughout the world of Another Crab's Treasure, including multiple references to the popular Nickelodeon show SpongeBob SquarePants. There's even a location in the Sands Between where you can find a recreation of SpongeBob's signature pineapple house.
Another Crab Treasure | How to Find a Knight's Helmet | Shellslike Achievement/Trophy Guide
The first thing you need to do is get the Mantis Punch Adaptation power for Krill. There is a purple block of Umami that is blocking you from reaching this location, and I couldn't find a solution to get there. To get this power, you first need to defeat the secret boss Topoda, who is located in the Expired Grove.
Related: How to Shoot a Crab with a Gun in Another Crab's Treasure
The Umami Blocks that need to be broken can be found in the northwest corner of the Sands Between, near the trash can and all the chains. Here is the map location of the Umami Blocks.
