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Kaeru no Tame ni Kane wa Naru (Game Boy)

21 upgrade stones, equipment, keys and items

Individual locations and timings for 11 Life, 7 Power and 3 Speed Stones. Also check equipment upgrades, item capacities and restocking requirements.

Scope: Original Japanese Game Boy version (1992). Additional 3DS Virtual Console features are treated separately / Content checked: October 2, 2026

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All 21 Saint Stones

L/P/S are checklist numbers used within this article, not coordinates on the in-game map. Life raises maximum hearts by 1 and heals on collection; Power raises attack, and Speed increases attack frequency.

Checklist number	Type	Location	Collection clue	Progression
L01	Life	Underground east of Shiimizu	The old man's 2 chests. Collect it with the Bronze Sword.	Days 1-2
L02	Life	Underground beneath a tree south of A la Mode	Reveal the entrance with the Saw and descend.	Days 6-7
L03	Life	Mandora's well	A chest on the route to the exit after becoming a frog.	Days 6-7
L04	Life	Palace: diamond underground waterway	Beyond the diamond door, on the way to the Warp Door.	Day 9
L05	Life	Snake Hole	Transform to pass the low passage, then check the side route with the chest.	Day 12
L06	Life	Palace: left-side route on the third visit	Underground after pushing the small block with the Wristband.	Day 15
L07	Life	Jungle	Chest on an upper platform before heading to the giant centipede.	Days 17-18
L08	Life	Underground in the forest where you search for Red Riding Hood	Northeast of Eskimo Village. Examine the places with ladders.	Days 21-22
L09	Life	Fuurin Gold Mine	Open the chest before pulling the sword in the deepest section.	Day 27
L10	Life	Palace: prison-escape route	Collect it while recovering your equipment on the way out with Madeleine.	Day 32
L11	Life	Palace: side route on the final visit	On the way from the spade door to the boss.	Day 33
P01	Power	Palace: right side on the first visit	Collect it before fighting the bridge guard.	Day 3
P02	Power	Palace: diamond underground waterway	Chest beyond the diamond door.	Day 9
P03	Power	Beyond the man in the hole	Revisit after rescuing the residents in the palace.	Day 16
P04	Power	Underground in northwestern Kuroza Island	Explore the island to collect it after shopping at Nantendo.	Days 17-18
P05	Power	Fuurin Gold Mine	Collect it while Heesuke accompanies you and check before pulling the sword.	Day 27
P06	Power	Lower part of the Ice Cave	Revisit for the Mirror Shield after obtaining the Snake Killer.	Day 28
P07	Power	Palace: right tower on the final visit	Collect it before returning to the central tower over the cloud platforms.	Day 33
S01	Speed	Underground beneath a tree south of A la Mode	A different underground area from the Life chest to the south. Cut a tree and investigate.	Days 6-7
S02	Speed	Glacier on the way to the northern cape	Search underground along the route to the elder's hut.	Days 19-20
S03	Speed	Lower part of the Ice Cave	Collect it on the return trip for the Mirror Shield.	Day 28

Route to the item →

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4 swords, 4 shields and 3 progression tools

Stronger swords and shields replace your current equipment when obtained. Table values are additions to stats, not damage dealt to enemies. Check when you need each item for the next boss.

Equipment	Role	Where obtained	When needed or requirements	Swords add to POWER; shields add to ARMOR
Fencing Sword	Sword	Starting equipment	Used until you obtain bronze. Stronger swords replace it automatically.	+2
Bronze Sword	Sword	Underground east of Shiimizu	Receive it before the first palace visit.	+4
Silver Sword	Sword	Weapon-storeroom chest on the third palace visit	Take it before fighting the prison guard.	+6
Snake Killer	Sword	Deepest section of Fuurin Gold Mine	Pulling it triggers the escape event. Collect the chests first.	+9
Wooden Shield	Shield	A la Mode: 100 Kuri	Buy it before heading to the haunted tree.	+1
Leather Shield	Shield	Gerobeppu Hot Springs: 200 Kuri	Upgrade before entering the Snake Hole.	+2
Iron Shield	Shield	Nantendo: 300 Kuri	Upgrade before exploring the jungle.	+3
Mirror Shield	Shield	Revisit the Ice Cave	Involved in the event during the first mammoth battle.	+4
Wristband	Pushing tool	Jam's event	Pushes small blocks and opens the palace's left route.	―
Work Gloves (Gunte)	Pushing tool	Give the Wasabi to the doctor	Moves the large rock northeast of Spring Hill.	―
Bairingaeru	Conversation item	Shop after rescuing Red Riding Hood	Lets you understand animals and proceed through the entrance to the elder's hut.	―

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19 keys and selectable items

Item	Main requirement for obtaining it	Use or exception
Diary	Old man in Shiimizu	Saves progress in 2 slots. Also read past events in the diary.
Map	Defeat the northern soldier	Shows the kingdom on the field and your palace location inside the palace.
Warp Door	Underground waterway on the second palace visit	Returns to the entrance in dungeons, or the last town entered on the field.
Suspicious Medicine	Mandora's Mansion	Advances the event that makes you a frog in water.
Even More Suspicious Medicine	Visit Mandora after the second palace visit	Use it to proceed through the western cave. It does not immediately turn you human.
Happiness Fruit	Tree or shop purchase	Returns you to human form. Keep some for travel after the hot springs.
Hot-Spring Egg	Shops including Gerobeppu	Transforms you into a snake and restores 1 Life.
Saw	Shops including A la Mode	Cuts certain trees as a human. Also required to fight haunted trees.
Pickaxe	Shops including Fuurin	Breaks earth in the gold mine. Check how many uses you are bringing.
Healing Wine	Shiimizu and shops	Restores 3 Life. You have space for only 1 bottle.
First-Press Wine	Visit the researcher after obtaining the Work Gloves	Restores 6 Life. Refill after emptying the Wine bottle.
Wasabi	Defeat the giant centipede; later available in shops	Deliver it to the doctor. It can also paralyze an opponent in battle.
Diamond Key	Soldiers' rest area on the second palace visit	Opens the diamond door to the underground waterway.
Heart Key	Prison guard on the third palace visit	Opens the residents' cells.
Club Key	Custard soldier in A la Mode	Used to rescue prisoners on the fourth palace visit.
Spade Key	Defeat the soldier in A la Mode after the prison escape	Opens the palace's final route.
Mammoth Controller	Visit the doctor after losing to the mammoth	Pause with B and use it during the mammoth rematch.
Z Flute	Bell repair event	Use it during the battle with giant-snake Delarin.
Ancient Tablet	Fuurin Gold Mine	Read its hint about the final way to attack Delarin.

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Supplies and carrying limits

Item	Purchase or healing	Capacity and caution
Healing Wine	25 Kuri / 3 hearts	1 bottle. Refill the empty bottle after using it all.
First-Press Wine	25 Kuri / 6 hearts	After obtaining the Work Gloves, speak to the researcher to update shop stock.
Hot-Spring Egg	10 Kuri each / 1 heart	Up to 32. Also used to transform.
Happiness Fruit	5 Kuri each	Up to 32. Keep enough to return to human form.
Saw	60 Kuri for 16 uses	Up to 32 uses. Used as a human.
Pickaxe	100 Kuri for 16 uses	Bring 2 sets for 32 uses. The maximum carrying limit is still being cross-checked.
Wasabi	30 Kuri for 16	Restock in shops after defeating the giant centipede.

Shop prices and complete stock lists change, so this table is limited to verified supplies and shield purchase locations.

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