Mystery Case Files: MillionHeir is a puzzle adventure video game developed by Big Fish Games and Griptonite Games and published by Nintendo, for the Nintendo DS handheld video game console.
"Use the Nintendo DS interface to expand on the seek-and-solve game play made popular by Big Fish Games.
Progress through an interactive detective story and investigate a sneaky cast of characters. Uncover new evidence to find the rightful heir to a million-dollar fortune. Remember, it takes a keen set of eyes to identify the heir in this P.I. story! Solve and interact with puzzles that use both the DS touch screen and built-in microphone. You'll discover multi-tiered hidden-object clues and the first ever multiplayer mode for a Mystery Case Files game.
Mystery Case Files: MillionHeir presents a new generation of seek-and-solve puzzle games for casual gamers and franchise fans.
This all-new portable installment is available only for Nintendo DS."