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Marvelous: Mou Hitotsu no Takarajima (Super Famicom)

Item owners, locations and uses

Which boy to switch to, where to obtain items and which mechanisms use them. Chapter 5's colored keys upgrade each time you open a chest.

Scope: Japanese Super Famicom version (released October 26, 1996) / Content checked: October 2, 2026

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19 main item entries

Owner	Item	Where obtained or unlocked	Use
Dion	Dash Shoes	Chapter 1: red chest on the ship	Ramming, races, generator and final reunion
Dion	Mitt and Ball	Chapter 1: route after the rescue	Throw at monkeys, dogs, targets and enemy weak points
Dion	Hammer	Chapter 1: where Dion is captured	Stakes, ice, bursting forest orbs and skull floors
Dion	Red Key	Rescue Winkii	Red chests; open chests to upgrade its stage in Chapter 5
Max	Goggles	Chapter 1: help the child in the water	Collect items in the pond
Max	Soccer Shoes	Chapter 1: pond	Penalty kicks, wall switches, grass and hardened plant projectiles
Max	Mogura-kun digging machine	Chapter 2: Junk and Blueprint	Past water source, grave, village floor and ant nest
Max	Punch Gloves	Chapter 3: boxing	Enemies after spraying, underground plants and roots
Max	Green Key	Rescue Winkii	Green chests and the final chapter's green doors
Jack	Fishing Rod	Chapter 1: cooperate at the pond	Fish, distant items/switches and mouse bridge
Jack	Jump Boots	Chapter 1: blue chest on the ship	Footprint platforms, gaps and the spider contest
Jack	Controller	Chapter 1: beyond the fish's mouth	Crate-breaking robot, watering and invisible floor
Jack	Tape Recorder	Chapter 3: researcher above the ledge	Record and play gorillas, mice and rock music
Jack	Dr. Marlow's Magnet	Chapter 3: deliver the Photograph	Retrieve Max's key revealed by the X-ray
Jack	Salt-Water Spray	Chapter 3: speak to the doctor after the rain	Stops parasitic plants, bagworms and ants
Jack	Blue Key	Rescue Winkii	Blue chests and the final blue door
Everyone	Transceiver	Chapter 1: rescuing separated companions	Switch to an off-screen boy; R or Y alone cannot reach him
Everyone	Tomato	During exploration and battles	Restores LIFE; have the injured boy collect it
Everyone	Luck Rock	Exploration and minigames	Ship fuel, Pirak's hints and completion rating

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Items that advance conversations

Item	When received	Recipient or target
Photograph	Chapter 2: Benson's grave	Townspeople and future Benson
Blueprint	Chapter 2: architect in the past	Use it with Junk in the future
Piece of Board	Chapter 3: dig below the papers	Sign beside the telephone
Cheese	Chapter 3: Smith's house	Mouse hole on the second floor
Village Coin	Chapter 3: play the mouse recording	Jackie's boxing
Doll	Chapter 3: child exposed by music	Mother carrying a baby
Empty Flask	Chapter 3: deliver lunch	Fill it with salt water in the cave and take it to the office
Soldier Blue	Chapter 4: ant nest	Fallen soldier, then Hazan
Buster Cannon	Chapter 4: rescue Hazan	Search the queen ant to use it
Colonel's Permit	Chapter 5: visit the colonel and teacher	Sailor outside the minecart cave

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5 material types for the Ant Buster

Material	Main action	Trade or collection
Frog's Tail	Operate the castle electricity remotely	Leave 2 boys on the small island in the pond
Forest Shell	Answer the pill bug's question and trade	Shed Skin -> Doghouse -> snail
Golden Drop	Startle the bee with the Hammer	Use the honey clue to visit the person in the cave
Forest Coat	Spray -> Ball	Stop the bagworm
Silver Thread	Ball -> Fishing Rod	Take it when the spider turns its rear toward you

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Chapter 5 keys have 4 stages per color

Color	Early upgrades	Final upgrade
Red	Generator minecart -> before the quicksand -> race	Max's pushing contest with the robot
Green	Route outside the stairs -> floor panel -> far left of the pushing contest	Chest near the elevator's 4F stop
Blue	Invisible floor -> fall from the rope -> 15-puzzle	Chest after meeting the teacher beyond the red door

Key-collection order →

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Check before spending Luck Rocks

Prepare 10 for Chapter 1's ship and 20 for departure after Chapter 2. In later chapters, check the amount requested by the ship's boiler.
Pirak's hints, cannons and minigames use them too. Finish the side trips you need before adding fuel, and check how many you hold.
Some rocks are hidden in tree roots, walls and skull floors. Investigate places for dashing or Hammer use; do not assume the same spot produces unlimited rocks.

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