Before we get started with all of the collectible locations in the "Medieval Sulfur Fields" map in SpongeBob SquarePants: The Cosmic Shake, I'd recommend you wait to go through this guide until after you've already beaten the game. None of these are missable so don't worry about them before that point. You'll even be required to have some of the abilities you unlock later in the game before you can even access many of the collectibles.
For coin 1, while you're on the rainbow road surfing down, you'll eventually reach a bubble surfboard that you'll need to ride. Instead of going through the main path you'll go towards the right and grab onto a hook that leads to this coin.
Then we can move onto the "Garden Maze" checkpoint to get coin 2. Once you get into the maze you'll go to the fountain and nearby you'll find a purple reef blower button. Hit that and complete the challenge to get this coin.
Coin 3 will be after you go into the maze itself. You'll go in, to the left, through the red arch, to the right, to the right again, and then you'll come up to a reef blower.
Take that and use it to suck in mushrooms to shoot down the purple goo barriers. Keep going down that path destroying them until you finally come up to this coin.
Then we can move onto the "Castle Courtyard" checkpoint to get coin 4. Once you get to the castle's drawbridge you can drop down into the moat and ride the boulder.
Go around the castle destroying all of the barrels until you end up getting back to the start and you'll get the coin.
Coin 5 will be during the seahorse riding section. While going through there make sure you are trying to take the route to go up high and then over to the right so you can get this coin. You might miss it the first time as it's pretty easy to miss, but if you just go through that section again you can grab it.
Then we can move onto the "Twitchy's Cottage" checkpoint for coin 6. Once you get up to the witch's hut you can look down opposite of the witch to find a button down below. Go activate that and then go up the path it shows to get this coin.
Coin 7 will be right after the seahorse. You'll drop down to the platform with a reef blower, and you can then take it to destroy the purple goo barriers until you finally get this coin.
You can also start grabbing the Potion ingredients for Gary's side quest here. You'll need to start the side quest in Bikini Bottom by talking to Gary, and then head here to talk to the witch about making a potion. Then you can grab these collectibles.
Ingredient 1 will be obtained from up near the witch. Just look out into the open and you can glide over to this tree trunk to grab it.
Then we can move onto the "Meanderson River" checkpoint for coin 8. Once you get to some rapids, you'll go down the path to the left, through some rings, and eventually you can drop down to a wall of tikis. Destroy those and you'll find this coin behind a waterfall.
We can also get the golden spatula for this map in this area. Once you cross the river over some moving platforms, you'll have a trunk to go through. Go through there, defeat the enemies, and then climb up the platforms on the side of the cliffs to get up above the tree trunk to get the spatula.
The spot location is also in this area. Going back to the ledges you can look to the left and you'll see an inflatable pad. Activate that and go across to get on a bubble hoverboard to get to the other side and you'll find spot on a ledge.
Ingredient 2 will also be in this area. For this one as you're looking at the river near the beginning you can go to the far right to grab this by the waterfall.
Then we'll move back over to the "Castle Courtyard" checkpoint for some potion ingredients. Ingredient 3 will be near the blacksmith shop.
Ingredient 4 will also be in this area, but you'll go below the drawbridge to find this one.
Then we can move onto the "Bard Audition" checkpoint for potion 5. THis one will be to the left of the entrance.
For coin 9 you can go to the leftmost back part of the courtyard and press the karate kick button to activate a karate kick challenge. Go through kicking all of the balloons to get the coin.
Next will be coin 10. It'll be on top of the castle walls. Press the button near the castle doors to start a bubble surfing challenge. Finish that race in time to get this coin.
Then we can move onto the "Dormitory Hall" checkpoint. Once you're inside the castle you can climb up until you get to the first jumping pad. Rather than going through the rings you'll turn around and jump onto the platform with a large jelly. Then platform behind the pillars to get to the bed with the coin.
Ingredient 6 will be at the end of the dormitory area. Once you get to the next checkpoint just turn around and look to the left where you'll see it sitting.
POTION INGREDIENT 7/7
Then we can go back to the "Garden Maze" checkpoint to get ingredient 7. You'll go into the maze and immediately turn to the right to find this one.
If you found the video guides helpful be sure to also like, comment, and subscribe over on my YouTube Channel.
I also cover the achievement/trophy guides for many other games so whether it's on Youtube, our website, or Steam check out some of my other guides to help you 100% more games.
Thanks for reading/watching!