Mystery Case Files: MillionHeir is an adventure game developed by Big Fish Games and released on Nintendo DS. Continue Reading → Jump to a section: Home Releases Credits Overview Walkthrough Achievements Cheats Mystery Case Files: MillionHeir Brainwaves View all → Discussion Article Thought Review 100 Share Mystery Case Files: MillionHeir with others Games You May Like Super Mario Galaxy Wii Sports New Super Mario Bros. Wii Fit Mystery Case Files: MillionHeir Releases Credits Characters List Overview Walkthrough Achievements Cheats Updates