🔊 Tap Play, then press “Play Now”

Nakayoshi Pet Series 3 - Kawaii Koinu (Japan)

0 Favorites 0 Likes 56 Views

Rate this game:

Embed Code

<iframe src="https://www.retrogamesonline.org/embed/game-boy-color-games/nakayoshi-pet-series-3-kawaii-koinu-japan.html" title="Nakayoshi Pet Series 3 - Kawaii Koinu (Japan)" width="600" height="450" frameborder="0" loading="lazy" allow="autoplay; fullscreen" allowfullscreen></iframe>

Game Boy Color Simulation Japan 1 Player 5 (0) 56

Nakayoshi Pet Series 3 - Kawaii Koinu (Japan)

Nakayoshi Pet Series 3 - Kawaii Koinu (Japan) on GBC

Compiled by the Retro Games Online Editorial Team · Updated June 26, 2026

Nakayoshi Pet Series 3 - Kawaii Koinu is a virtual pet simulation for the Game Boy Color, released exclusively in Japan. It is part of the Nakayoshi Pet Series, a line of animal-raising games aimed at younger players. The exact publisher and developer are not widely documented, but it was built on the same pet-raising formula popularized by titles like Tamagotchi and Nintendogs.

The player takes on the role of a puppy owner, responsible for feeding, grooming, playing with, and training their digital dog. The game uses a simple menu-driven interface where you choose activities like feeding, washing, and taking your puppy for walks. Over time, the puppy grows and its behavior changes based on how well you care for it. The goal is to raise a happy, well-trained pet.

Today, Kawaii Koinu remains a charming curiosity for retro collectors and pet sim fans. It does not have the depth of later virtual pet games, but its simple, wholesome gameplay captures the essence of early handheld pet sims. If you enjoy low-stakes simulation games and can navigate Japanese menus, it is worth a quick playthrough.

How to Play Nakayoshi Pet Series 3 - Kawaii Koinu (Japan) Online

Getting Started

When you start the game, you will be greeted by a menu in Japanese. Press Enter to begin. The first screen asks you to name your puppy using a hiragana keyboard. Use the D-Pad to select characters and press X to confirm each letter. Once named, your puppy appears in its room.

The core loop is simple: your puppy has basic needs displayed as icons (hunger, happiness, cleanliness). Use the D-pad to select an activity from the main menu, such as feeding (food icon), playing (ball icon), or cleaning (brush icon). Press X to confirm your choice. Over time, your puppy will grow and you may unlock new toys or behaviors. Check the status screen to see how your puppy is feeling.

Because this is a Japanese-only game, all menus and text are in Japanese. However, the interface is icon-based, so you can learn the symbols quickly. Save your progress using the save option in the menu before turning off the Game Boy Color. There is no time limit or fail state - just regular care keeps your puppy happy.

Nakayoshi Pet Series 3 - Kawaii Koinu (Japan) Keyboard Controls

Controls

Arrow Keys: D-Pad / Movement
X: A button (jump / confirm)
S: B button (run / attack / cancel)
Enter: Start / Pause
V: Select

Frequently Asked Questions

Roughly how long does it take to finish Nakayoshi Pet Series 3 - Kawaii Koinu?

There is no traditional ending; the game loops as long as you continue caring for the puppy. A single playthrough or reaching full growth typically takes a few hours of active play spread over several days.

Is Nakayoshi Pet Series 3 - Kawaii Koinu exclusive to Game Boy Color or did it appear on other systems?

This title was only released for the Game Boy Color and never ported to other platforms. It remains a Japan-only cartridge.

Is Nakayoshi Pet Series 3 - Kawaii Koinu considered easy to pick up or challenging?

The game is extremely easy to pick up, with minimal mechanics and a gentle pace. There is no difficulty curve - just consistent attention to basic pet care.