Koi-Koi Japan: Hanafuda playing cards (こいこい花札) is a game for the Nintendo Switch for playing Koi-Koi. It was published in 2024 by Sticky Rice Games. It is the Switch version of Koi-Koi Japan for PC.
The game includes both single player and cross-platform online multiplayer modes. The game supports several languages: English (US), Japanese, French, Spanish (Latin America), Simplified Chinese. and Traditional Chinese.