Revenge of the Flying Dutchman
Unlock Fishing Gear:
In Bikini Bottom, body slam the button near The Krusty Krab. Then, go into the changing tent and press A.
Unlock Mermaid Man:
At the Downtown Construction site, talk to Patrick and give him a bag of Krabby Patties. Then go into the changing tent and press the X button.
Unlock Reef Blower:
Enter the Jellyfish competition in Jellyfish Fields and catch 100 Jellyfish and bring them back. Then go into the changing tent and press the Y button.
Jellyfish Fields Bus Ticket:
After Patrick leaves the Chum Bucket in search of Plankton, go to Resident Row. When you're there, search the buildings near Patrick's rock. There will be a Pink Jellyfish circling one of the buildings. Floating underneath it is the Jellyfish Fields Bus ticket. Either catch the Jellyfish or jump up to reach it. The Jellyfish Fields Bus Stop is in front of Spongebob's pineapple.
Chum World Bus Ticket/Pass:
In Jellyfish Fields, find Plankton. He will not give you the ticket, but he will tell you to go find one of the Chum World clown. When you find him, you will make a deal with him. But first you must defeat him. When you do, he will bounce away and give you the Chum World pass.
Downtown Bus Ticket:
After you find the first treasure, go see Squidward. He will race you to the Krusty Krab. Once you're there, Mr. Krabs will tell you he will shut down the Krusty Krab. When you cheer up Mr. Krabs, he will tell you to meet him downtown. Then he will give you the Downtown Bus Ticket. The Downtown Bus Stop is near the Krusty Krab and the Chum Bucket.
Goo Lagoon Bus Ticket:
After you find the Treasure in Jellyfish Fields, go to the Goo Lagoon Bus Stop located in Resident Row. You will see Larry the Lobster in a belt. Talk to him and he has an extra Bus Ticket. He will give it to you if you give him 50 Jellyfish. The bench is in Resident Row.
Sandy's Tree Dome:
After you deliver Krabby Patties Downtown, follow Patrick to Resident Row. Patrick will not be there, but Squidward will be having a yard sale.You have to talk to Squidward first. Walk away from Squidward and the narrator says to sneak up on Squidward to borrow a book from him. After you read it Sandy will knock the rocks out of the way. Before you go into the Tree Dome you will have to challenge Sandy to a Karate test. Then buy Sandy a gift from Squidward's yard sale and you will unlock the Tree Dome.
Before you find all 7 treasures, karate chop the barrel at the back door of your pineapple. When you find all 7 treasures, the Flying Dutchman will drop cargo on your pineapple. The front door will be blocked, so you have to go out the back door.When you're outside there will be a cannon next to you. Jump into the cannon and press the action button. Then you will be in the Dutchman's Graveyard.
Thanks to Revolution readers Springboob Squirepin/Master Fancyson/Clown's frown and Goo Bafoon!