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Kaeru no Tame ni Kane wa Naru (Game Boy)
Full walkthrough: days 0-33 and 5 palace visits
Check bridges, keys, transformations and pushing tools in progression order. Palace visits are separated according to the diary's divisions.
Scope: Original Japanese Game Boy version (1992). Additional 3DS Virtual Console features are treated separately / Content checked: October 2, 2026
Days 0-2: departure, Shiimizu and the first sword
- After Richard sails, board the ship to the east for the Mille-Feuille Kingdom. Speak to people at Shiimizu port town's exit to receive healing Wine and the Diary.
- Head east from Shiimizu and take the Bronze Sword and a Life Stone from the old man's underground chest. The stone raises maximum Life, and the sword updates automatically too.
- Defeat the soldier north of the port and pick up the Map it drops. After the earthquake, continue north to Eclair Palace.
Day 3: Eclair Palace, first visit
- First open the chest to the right of the entrance for a Power Stone. If you headed straight to the guard on the left and lost, check this chest and the sword/stone east of Shiimizu.
- Return to the entrance and go left. For high platforms, hold up and hold A to jump high; when you reach the edge, press sideways to climb up.
- Defeat the guard and activate the bridge switch. Leave the palace, cross the eastern bridge and head to the castle town of A la Mode.
Days 4-7: A la Mode, the Saw and the Lost Woods
- Trigger the theft incident at A la Mode's shop and advance the disturbance in the neighboring building. After restarting at the hospital, gather money outside town and buy a Wooden Shield and Saw.
- Examine a tree you can cut south of town, then collect the Life Stone and Speed Stone underground. The Wooden Shield costs 100 Kuri; a Saw with 16 uses costs 60 Kuri.
- In human form, equip the Saw and touch the haunted tree at Bavarois Mountain's entrance. Gather the stones and shield and heal your Life before fighting.
- Converting the Lost Woods' sign instructions into screen transitions gives north → east → north → north → west → west → west → north. Move between screens in this order without backtracking partway through.
- Eat fruit at the Tree of Happiness, then follow the bird to Mandora's Mansion. After drinking the medicine, follow Jam into the well and enter the water to become a frog.
- Pick up the stolen money and Life Stone in the well, then continue to the exit. Return to A la Mode to reunite with Richard, who has become a frog.
Days 8-9: Eclair Palace, second visit
- As a frog, go right from the entrance and cross the waterway. Do not try to endure the water as a human; keep your transformation and head for the soldiers' rest area above.
- Speak to the soldier and take the Diamond Key from the chest. Wait for moving platforms to come up, and do not stand long on collapsing floors.
- Open the diamond door and enter the underground waterway below. Collect the Power Stone and Life Stone along the way, then take the Warp Door from the chest beyond the deep vertical shaft.
- Use the Warp Door to return to the entrance and speak to Richard. Travel through A la Mode's well to Mandora's Mansion again.
Days 10-12: medicine and Gerobeppu Hot Springs
- Buy and use the Even More Suspicious Medicine from Mandora. Drinking it does not turn you human here, but it is a requirement for entering the next cave.
- Pass through the cave west of the palace to Gerobeppu Hot Springs. The snake fight before town advances through defeat, so do not repeatedly return to grind.
- Hear the transformation explanation in town and buy a Leather Shield. Restock Hot-Spring Eggs and Happiness Fruit, heal at the hot spring, then leave to the west.
Days 12-14: Snake Hole and Spring Hill
- Enter the Snake Hole west of the hot springs. Use a Hot-Spring Egg to become a snake and hold down to crawl through low openings. You cannot jump in snake form.
- Use Happiness Fruit to return to human form when fighting snakes blocking the way. Bite slugs as a snake to turn them into blocks, then use them as footholds.
- Collect the Life Stone chest too, then leave for Spring Hill. Speak to Jinbee farther inside town and visit the man in the hole who lives to the southeast.
- Advance the event that sends you back to A la Mode and receive the Wristband. Once you can push small blocks, return to the palace's left side.
Days 15-16: Eclair Palace, third visit
- Push the small block blocking the entrance's left side as a human. Switch to a snake for low passages, a frog for waterways and a human for fights with soldiers.
- In the storeroom, retrieve the Silver Sword from the 6 weapon-storage chests. Do not assume a fixed correct position; note that some chests contain enemies. Do not treat the other chests as safe equipment chests, and watch for traps.
- Pick up the Life Stone along the route, defeat the prison guard and take the Heart Key. Rescue the imprisoned residents to proceed outside the palace.
- Visit the man in the hole again and collect the Power Stone farther inside. Head east from Spring Hill, then north; when the large rock blocks you, return to town.
- Ask Jinbee how to deal with the large rock, then board the boat beside the shop for Kuroza Island.
Days 17-18: Nantendo and the jungle
- Head north across the island to Nantendo. Buy a 100-Kuri sushi meal ticket and sit beside Dr. Shitain in the dining hall. The conversation about its taste leads to a request to gather wasabi.
- Buy an Iron Shield at the shop and take the Power Stone underground in the island's northwest. Use the island's holes to travel and enter the central jungle.
- At the ledge with 2 slugs, bite them as a snake to make blocks. Drop the upper block onto the lower one to stack them, then return to human form to climb the footholds.
- In the section crossing spikes, turn bats into blocks and push them onto the spikes as footholds. Do not forget the Life Stone along the way.
- At the final three-way route, go left and use the Ikeike Orb to heal before taking the middle path to the wasabi field. The right path sends you back to the previous location.
- Touch the tip of the giant centipede's tail as a human to fight it. Do not begin from the hard part of its body. Obtain the Wasabi, give it to the doctor and receive the Work Gloves.
Days 19-22: the large rock, glacier and Red Riding Hood
- Visit the wine researcher southeast of Spring Hill. After you obtain the Work Gloves, First-Press Wine is completed, and Wine sold in shops is upgraded from then on.
- Head east from town, then north, push the large rock with the Work Gloves and proceed to Meringue Glacier. Read the sign requesting a spell in the northern Ice Cave before heading to Eskimo Village.
- Listen to the elder in the village, then meet the frog in front of the hut on the northern cape. Also take the Speed Stone underground along the way.
- Return to the village and ask the shopkeeper where Red Riding Hood is. Search underground in the haunted-tree forest to the northeast and find her at its northernmost point.
- Collect the Life Stone underground in the forest too. Return to the shop, defeat the soldier disguised as the shopkeeper and receive the Bairingaeru from Red Riding Hood.
Days 23-26: the elder's spell, Fuurin and hiring help
- After obtaining the Bairingaeru, return to the northern cape and speak to the frog outside the gate. When it enters the hut, enter too before it comes back.
- Speak to the elder repeatedly, answer the questions and learn the spell. Return to the Ice Cave sign to proceed with the spell you learned.
- Pass through the cave to Fuurin. Ask about the gold mine in town and restock Pickaxes. Each set has 16 uses, so 2 sets provide 32 uses.
- Become a frog in the desert well and climb the volcano. You can eat insects, but avoid touching snakes or birds. Pass the gold-mine gatekeeper while remaining a frog.
- When the miner says people are needed to dig, return to town with the Warp Door. Advance conversations in this order: residents → noticeboard → Heesuke's family → tavern.
- Heal your Life, speak to Heesuke at the tavern and win the fight. Hire him again in front of the noticeboard, then take the Kazan All-Stars to the gold mine.
Day 27: Fuurin Gold Mine
- Enter the gold mine as a human this time. Leave the gatekeeper to Heesuke and pay rewards at digging spots to continue. Companions handle battles while they accompany you.
- Break clumps of earth with the Pickaxe to descend. Pick up the Power Stone, Life Stone and Ancient Tablet. The tablet contains a clue for the final fight.
- Pulling the Snake Killer from the deepest section triggers the escape event. Check nearby chests and upgrade stones before pulling it.
Days 28-30: Mirror Shield and the mammoth
- Accept the elder's request in Eskimo Village and revisit the Ice Cave. Head down from where the mammoth was to collect the Power Stone, Speed Stone and Mirror Shield.
- Fight the mammoth in the village and press B during battle to advance the scene involving its reaction to the Mirror Shield. After losing the first fight, speak to the elder and visit Dr. Shitain.
- Use the newly available landing to reach Spring Hill and Kuroza Island. Receive the Mammoth Controller at Nantendo.
- Return to the village for a rematch, then choose B → Use item → Controller. Go to the lakeshore with the mammoth now on your side and have it carry the Gold Ingots.
Days 31-32: repairing Bell and the fourth Eclair Palace visit
- Give the Gold Ingots to Jinbee in Spring Hill. Bell's repairs progress, and the doctor's assistant gives you the Z Flute. Continue the event leading to A la Mode.
- Receive the rescue request and Club Key in A la Mode. Go right from the palace entrance and open the club door immediately above.
- You are captured beyond the frog storeroom. Examine the bars in Madeleine's cell, speak to her and wait for Jam's rescue.
- Do not try to beat strong soldiers while your equipment is gone. Recover the Diary, equipment and items from chests, and collect the Life Stone along the way.
- Defeat the soldier guarding the exit and recover the Warp Door. Escape the palace and return to A la Mode.
Day 33: fifth Eclair Palace visit and Delarin
- Leave Madeleine's house, defeat the soldier and take the Spade Key. Go right and then up from the palace entrance to open the spade door.
- Take the Life Stone on the side route and Power Stone in the right tower. Travel by zipline, then return to the central tower via the cloud platforms.
- Touch the Ikeike Orb before the boss room to heal. Check that you have the Z Flute and speak to Delarin.
- During the giant-snake form, pause battle with B and use the Z Flute from your items. After your allies arrive, charge with A into the hole in the barrier to finish the final fight.
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