Hunting the 5 Legendaries of Asso

Updated at May 18, 2026
Shin-chan and friends listen to a woman reading from a book on a lit traditional Japanese engawa at night.

Image captured on Switch 2

While there are no magical monsters to capture in Shin Chan: Me and the Professor on Summer Vacation, tracking down the elite fauna of this rural Japanese town requires the same dedication as hunting down a legendary Pokémon. These top-tier specimens are the most elusive creatures in the game. Catching them is not just a badge of honor for completionists, it is the ultimate key to securing the most spectacular front-page headlines for Cap's newspaper and earning a massive payout of Yen.

Here is your ultimate big game hunting guide to finding and capturing the "Top 5 Legendaries" of Asso.

Preparation: The Expert Hunter's Kit

Before you set out to catch these mythical creatures, you need to prepare properly. You will not find these targets by casually strolling around on Day 1.

  • Time Management: Many of these "legendaries" only spawn during the later days of the time loop and at very specific times of the day (usually dusk or pitch-black night). You must manage your stamina gauge perfectly, carrying enough Chocobi snacks to avoid fainting before the sun goes down.
  • The Respawn Trick: Do not waste hours waiting. If you arrive at a hotspot and your target is not there, simply walk off the edge of the screen and walk immediately back in. This forces the game to reload the area, generating a brand-new set of bugs and fish shadows. Repeat this until your target appears.

Top 1: The Hercules Beetle (The King of the Night)

The undisputed crown jewel of the Japanese summer. Catching this massive, horned beast is a rite of passage for any bug catcher.

  • Coordinates / Location: Look for large, thick trees in the Deep Forest area or right outside the children's Secret Base.
  • Time (Spawn): Exclusively at dusk and during the night.
  • Strategy: You will spot its distinct, chunky black silhouette resting statically on the tree trunk. Do not run. If you sprint up to the tree, you will spook the beetle, and it will fly away permanently. Walk very slowly towards the trunk and swing your net only when you are perfectly positioned.

Top 2: The Giant Salmon (The Waterfall Monster)

The ultimate fishing trophy. Reeling in this massive fish will easily secure the number one spot in the local newspaper.

  • Coordinates / Location: The Waterfall basin (an area unlocked in the later stages of the game after completing specific dinosaur errands for the Professor) or the deepest upstream waters.
  • Time (Spawn): Midday to late afternoon.
  • Strategy: This requires visual discipline. You are looking for the absolute largest, widest shadow in the water. It dwarfs the shadows of Carp and Ayu fish. Ignore every small or medium shadow. Use the respawn trick over and over until that massive silhouette appears beneath the surface, then wait patiently for the strong pull.

Top 3: The Japanese Eel (The River Ghost)

This fish is notoriously difficult to catch simply because many players do not know what shape to look for in the water.

  • Coordinates / Location: The wide river beneath the main bridge, or the waters near the old sawmill.
  • Time (Spawn): Best caught during the late afternoon or dusk.
  • Strategy: Unlike the Salmon, you are not looking for a traditional fish shape. The Japanese Eel casts a very thin, elongated, snake-like shadow. Because it is so narrow, it can be easy to miss among the ripples. Cast your line carefully and prepare for a very subtle bite.

Top 4: The Atlas Beetle (The Armored Gladiator)

The great rival to the Hercules. With its distinct three-pronged horns, it is just as valuable and just as difficult to find.

  • Coordinates / Location: The trees around the Kurokami Farm or along the mountain path leading into town.
  • Time (Spawn): Dead of night.
  • Strategy: Similar to the Hercules Beetle, it clings to the bark of large trees. However, it tends to spawn on different days within the time loop. Finding it requires religious patience; you must make it a habit to check every tree on the farm just before Hiroshi calls you home for dinner.

Top 5: The Swallowtail / Emperor Butterfly (The Flying Lightning)

Unlike the beetles that patiently wait for you on a tree, this legendary insect requires lightning-fast reflexes and aggressive pursuit.

  • Coordinates / Location: Wide open areas with plenty of blooming flowers, such as the crop fields or the entrance to the forest.
  • Time (Spawn): Morning and midday (in bright sunlight).
  • Strategy: This butterfly does not stay still. It flies erratically and quickly across the screen. The moment you spot its large, colorful wings, you must sprint directly at it and perform a sweeping net catch. If you hesitate, it will fly off the edge of the screen and vanish. Be careful not to accidentally transition to the next area while chasing it!

Conclusion

Capturing these five elusive creatures is the ultimate test of your summer vacation skills. But the effort is well worth it.

Not only will you complete the hardest pages of Shinnosuke's encyclopedia, but taking these records to the Newspaper Office will result in explosive subscriber growth. Cap will reward your legendary hunting skills with the highest daily Yen payouts in the entire game, ensuring you can spend the rest of your endless summer buying out the local snack shop like an absolute boss. Happy hunting!

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Shin chan: Me and the Professor on Summer Vacation

  • Developer: Millennium Kitchen
  • Publisher: Neos Corporation
  • Engine: Unity
  • Genre: Adventure / Casual
  • Release date: August 11, 2022
  • Duration: 10-12 hours
  • Available on
    Nintendo Switch PlayStation 4 PC

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