This game is rated ESRB: Everyone for Violent References.
Mystery Case Files: MillionHeir is a puzzle-adventure game developed by Big Fish Games and Griptonite Games, published by Nintendo for the Nintendo DS in 2008. The title belongs to the Mystery Case Files franchise but sits outside the main PC game series, making it a standalone portable entry rather than a direct continuation of the core computer games. It was the second Mystery Case Files title released for a handheld platform, launching first in North America before receiving subsequent releases in Australia and Europe. Designed around the DS hardware, the game combines investigative puzzle-solving with adventure elements in a format tailored to portable play. Its publication by Nintendo rather than a traditional third-party publisher distinguished it from other entries in the franchise at the time of release.
