ポヨポヨ観察日記 (Poyo Poyo Kansatsu Nikki) is a Nintendo 3DS game developed by Nintendo and published in Japan in 2012. It is a puzzle game that follows the adventures of a young girl named Poyo who, with the help of her friends, investigates mysterious events that occur in her town. The game is set in a peaceful rural town, and players must solve puzzles to progress the story. The game has a lighthearted and humorous tone, and the characters are cute and endearing. The gameplay is simple and intuitive, and the puzzles are challenging yet fun. Players can collect items, customize their character, and explore the town to uncover secrets. Poyo Poyo Kansatsu Nikki is a charming and enjoyable puzzle game that will provide hours of entertainment for players of all ages.