A brand-new free app has arrived—the perfect time-killer! This is a “Whack-a-Mole × Suika-Wari (Watermelon Splitting)× Fast-Paced Quiz (Quick Reflex, buzzin, or buzz-in Quiz)” hybrid!

Watermelons, each containing fragments of language information like puzzle pieces, are launched from idle inner tube on the beach.

Hit the right ones and collect the pieces!

But be careful—some watermelons will suddenly shoot upwards like bullets and Guns, or into the air like rockets, and knocking your hammer away if your timing is off!

✔ Satisfying watermelon-smashing

action! —Smash watermelons and relieve stress!

✔ The thrill and experience the tension of whack-a-mole !

✔ Realistic effects bring excitement and make every hit feel amazing!

✔ Miss the rhythm, and the watermelon escapes—frustration guaranteed!

The theme is kanji with fish radical, chosen for their versatility in language learning, covering fish trivia, sushi knowledge, and kanji etymology or origins. This quick-answer mini-game is designed to be simple, easy even for beginners with no charge.

It’s perfect for:

✔ Brain training

✔ Boosting reflexes & reaction speed

✔ Enhancing dynamic vision


Since it’s offline game, you can play anytime , anywhere instantly.

No Wi-Fi? No problem!
No in-app purchases? Absolutely free
—for F2P(free to play) player.

Since each round is short, you can play it during commutes to school or work, before bed, on lunch breaks, or even in the bathroom—great for killing time in small pockets of free time. Recommended for a wide range of players, from kids(boys & girls) to adults in-between time!

Learn kanji for popular fish like tuna and bonito, as well as famous sea creatures like whales, sharks, octopuses, squid, & shells !

This is a super casual & quick-play educational game that you can start in seconds!

〜Story Setting〜

The setting is the ocean!
A young American woman in a one-piece dress finds a lifebuoy on the shore. As she peers inside, she is suddenly sucked in—transported to a parallel world beyond the beach!

A ship approaches, but no matter how much she yells, they don’t understand her language and fail to notice her distress. She’s stuck—until the sea creatures come to her aid!

They seem to be saying, “Call our names!” and bring her kanji characters that represent them.

Nearby, she discovers a strange watermelon field, where hiragana letters are engraved. By smashing the watermelons with a stick, she can collect the hiragana characters to spell out their names!

But watch out!
• Watermelons fly out of the sand when you least expect it!
• The letters inside are random—just like a gacha game!

To escape from this mysterious world, she must read the kanji.

Recommended age
Best for middle school & high school students (ages 13-18)!

★Here are some tips and insights to master the game!

You can learn Kanji with the “fish” radical. Whack-a-Melon～Kanji BuzzerQuiz is a game similar to Whack-a-Mole, but you hit watermelons instead of moles.

Kanji will show up on the right side of the screen. Your job is to answer how to read it. To get it right, hit the watermelons with the correct kanji in the correct order.

A radical is like the “main piece” of a kanji. It’s a part of the kanji that helps show its meaning or how it’s used.

For example, the “fish” radical (魚) is found in kanji about fish, like tuna (鮪) or salmon (鮭).

Think of it as a clue to what the kanji is about!
You can think of it as a hint about what the kanji means!

In kanji, the “Tsukuri” is the part on the right side of the character. It often helps show how to read the kanji or what it means.

For example:
・In the kanji 鰍 (kajika, meaning “Fish that are in season during autumn（Fish that are best to eat in winter）”), the right side 秋 (aki,meaning"autumn") is the “Tsukuri.”

・In the kanji 鮟(ann) and 鱇 (kou), the right side 安 (ann) and 康 (kou) are the “Tsukuri.”

Think of it as the piece on the right side that helps build the meaning or sound of the kanji!