If you're like me and can't stop playing until you've gotten every shell in the game, especially one as cool as the Skull shell, then check out how to get it in Another Crab's Treasure below.
Where to find the Skull Shell in Another Crab's Treasure
To find the Skull shell in Another Crab's Treasure, you first need to get to Curdled Village. If you've already been through it and fought Heikea, you can just use your Shelleport Umami Skill and go to the Village Gates. However, if this is your first time going through it, I suggest ignoring as many enemies as you can until you get to the top of the hill.
You have to kill the spider crab for it to drop the Skull shell. However, you'll also have to fight the hammer crab since it will keep attacking you. I suggest dealing with the hammer crab first where the sniper crab can't see you, or you might get impaled by a shish kabob when you least expect it.
While the sniper crab isn't officially a boss, it definitely has a lot more health than the regular enemies and it will deal a lot of damage to you. Try to get it to fall off the overlook so that you have more space to work with.
I suggest using a healing shell, such as the Yoccult shell to give yourself enough time to defeat the crab. If it gets broken, just run up and grab one of the Cascadia rolls that are in the area. If you already have it, I'd suggest using the Mantis Punch adaptation to deal a lot of damage to the spider. Watch out as it will also use melee to attack you if you get too close.
One important thing is that you pick up the shell as soon as the spider dies and drops it. Don't leave and come back for it, as it will be gone. Since this is a battle you can only have once, you'll essentially be locked out of getting a shell and completing the game 100%.
If you want to unlock secret areas of the ocean, learn how to break the glowing purple blocks in Another Crab's Treasure on Pro Game Guides.
