Marvelous: Mou Hitotsu no Takarajima Guides
An action adventure in which you switch between 3 boys and solve puzzles across 5 chapters using items and teamwork.
Scope: Japanese Super Famicom version (released October 26, 1996) / Content checked: October 2, 2026
Requirements for advancing in each chapter
| Chapter | Main requirements | Check before leaving |
|---|---|---|
| 1: camp and ship | Items, Polly and the first crystal | Scarf and camp side trips |
| 2: wilderness | Use the clocks to visit the past, open the water source and rescue Benson | Past minigames and the grave |
| 3: baobab | Recording, checking residents, power generation and the parasitic tree | Return the Magnet and Tape Recorder |
| 4: Lilliput | 5 materials, 3 paint colors and the queen ant | Rescue the soldier before Hazan |
| 5: final island | Permit and upgrading the 3 colored keys to 4 | Reuniting, the Bellows and balloon |
Checks when the way will not open
| Problem | Possible cause | Next action |
|---|---|---|
| You cannot gather your companions | You moved to another screen after switching with R | Return to the same screen and use Y; use the Transceiver if you remain separated |
| You have an item but cannot use it | The owner is wrong, or you are confusing Search with B actions | Switch to the assigned boy, then Search the target or equip the item used with B |
| Nothing happens in the clock mansion | You are touching clocks that break | Choose a clock whose hands remain intact: 10:00 -> 9:30 -> 10:30 |
| You cannot obtain the key at Jean's house | Talking from the front does not distinguish them | Look through the outside hole with Max at the top of the stack |
| You cannot continue through the dark basement | Dion's power generation has stopped | Switch back with the Transceiver to generate power; find the power switch beside the shutter |
| The floor-panel door closes | The boy holding the switch also moved | Leave 1 boy standing on it and send only Max to the chest |
| A colored door in Chapter 5 will not open | Your key is still at stage 1-3 | Open same-colored chests in order to upgrade it to 4 |
Scope and unverified areas
- Covers ordinary play in the Japanese Super Famicom version, with directions based on Search, items and the 3 boys' positions. Button labels from ports are not used.
- Coordinates of every Luck Rock, prizes for all minigames and every square of movement across invisible floors have not been cross-checked. This is not presented as a complete collection guide or full map.
Camp and wilderness
Use the ship and clock puzzles to reach the next island
- ・The ship shutter uses 1286
- ・The clock uses 10:00 -> 9:30 -> 10:30
- ・Dig the water source in the past with Mogura-kun
Baobab and Lilliput
Collect the orbs using recordings, Spray and shared tasks
- ・Operate Dion remotely while he generates power
- ・Help the soldier before Hazan
- ・Painter: blue -> red -> green; back garden: red -> green -> blue
Final island
Upgrade the colored keys and reach the balloon
- ・Leave someone holding the floor switch while you go to the chest
- ・Move the 15-puzzle with Dion's B action
- ・Leave Dion behind at the end, then reunite
Problem: You cannot gather your companions
Cause: You moved to another screen after switching with R
Solution: Return to the same screen and use Y; use the Transceiver if you remain separated
Problem: You have an item but cannot use it
Cause: The owner is wrong, or you are confusing Search with B actions
Solution: Switch to the assigned boy, then Search the target or equip the item used with B
Problem: Nothing happens in the clock mansion
Cause: You are touching clocks that break
Solution: Choose a clock whose hands remain intact: 10:00 -> 9:30 -> 10:30
📋 Marvelous: Mou Hitotsu no Takarajima Walkthrough for All 5 Chapters
Walkthrough for all 5 chapters — read →📖 Marvelous: Mou Hitotsu no Takarajima Controls, Switching the 3 Boys and Teamwork
Controls, switching the 3 boys and teamwork — read →🔑 Marvelous: Mou Hitotsu no Takarajima Item Owners, Locations and Uses
Item owners, locations and uses — read →
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