Another Crab's Treasure

At the "bonfire" you can see all the collected shells. They are located more or less sequentially by location.
Almost all are easily collected from visible places or from opponents.
Of the ones that are missed, only:
1. Buy all the shells from the merchant in Rakopolis
2. Helmet ( see trophy Shellslike / Familiar thing )
3. Matryoshka (3 pcs: large, medium, small). To get a medium and small one, you need to put on a large matryoshka and get hit in the face until it breaks. A smaller matryoshka will fall out. We repeat, a small matryoshka falls out.
4. Pistol ( "Settings" - "Assistance mode" - "Give Krill a gun!" . If you remove the gun, the cell in the shell menu changes back to "?")
Text guide (ru).