Koikoin: Coin Shopping Puzzle

Welcome to Koikoin – a cozy coin-dropping puzzle where every exchange turns into a shopping trip! Drop adorable Japanese yen coins into the box. When enough of the same coin gather together, they exchange into the next coin up – just like at a real bank: • 5 × ¥1 → ¥5 • 2 × ¥5 → ¥10 • 5 × ¥10 → ¥50 • 2 × ¥50 → ¥100 • 5 × ¥100 → ¥500 Coins you exchange are ready to spend. Pick what you want to buy from three items, keep exchanging, and the checkout happens automatically once you have enough. Any change comes right back to you. Chain exchanges together for combos – hit 5 in a row for a JACKPOT! ■ GAME MODES 🛍️ Shopping Mode Play at your own pace. Buy items and collect all 51 of them in your picture book. 💱 Exchange Mode No shopping this time – just save up as much as you can! Pair up ¥500 coins to bank them and push your total higher. 🤖 CPU Battle Challenge the computer. Big combos send obstacles to your opponent's board. The CPU gets stronger as you win. 👫 Play with Friends Share a room number and battle a friend online. 🚪 Drop-in Battles Turn on "Accept drop-ins" and friends can jump into your solo game with your room number. When the battle ends, you go right back to where you were. 🎉 Party Mode Team up with 2 to 10 players and shop together! Flick or throw coins onto a shared board. Empty seats are filled by CPU players. ■ FEATURES • Cute, colorful coin characters with lots of expressions • A guide character who cheers you on with voice lines • A picture book with 51 items to collect • Achievements and leaderboards with Google Play Games • Save data syncs automatically with your Google account • Supports phones, tablets, and Google Play Games on PC Easy to pick up, fun to master. Start exchanging and happy shopping! * The in-game text is in Japanese.