ナゾトキ・ハローキティとサンリオキャラクターズワールドロックツアー（日本） (Mystery Hello Kitty and Sanrio Characters World Rock Tour (Japan)) is a fun and interactive music game from Nintendo 3DS. Players join Hello Kitty and her friends on a world tour of music and adventure. As they travel, they'll get to experience different genres of music, take part in rhythm-based mini-games, and even battle bosses. The game features a variety of characters from the Sanrio universe, such as Cinnamoroll, My Melody, and Keroppi. Players can also customize their characters with different outfits and accessories. There are also multiple difficulty levels, allowing players of all ages and skill levels to enjoy the game. With colorful graphics and an upbeat soundtrack, this game is sure to please fans of Hello Kitty and Sanrio alike.