Nazo waku Yakata - Oto no Ma ni Ma ni (Japanese: 謎わく館～音の魔に魔に～) is a horror-themed puzzle game for the Nintendo 3DS. Developed and published by Konami, the game is set in a mysterious mansion and features a unique blend of adventure and puzzle elements. Players take on the role of a detective who must explore the mansion and solve puzzles in order to uncover its secrets. The game features a variety of puzzles, ranging from logic puzzles to hidden object puzzles. Players must also interact with the mansion's various inhabitants in order to progress through the game. The game's visuals are presented in a dark, creepy style, and the soundtrack is filled with eerie music and sound effects. Nazo waku Yakata - Oto no Ma ni Ma ni is a great horror-themed puzzle game that will challenge players as they search for clues and solve puzzles in order to uncover the mansion's secrets.