Mario Is Missing! is an educational puzzle game featuring Luigi as the primary character. Players navigate through a city in a side-scrolling format, engaging in platforming elements and interacting with various landmarks. The objective is to retrieve stolen artifacts from Koopas and return them to their rightful places. To successfully complete this task, players must answer questions related to each landmark, making the game not only entertaining but also informative.

This game offers a unique blend of adventure and education, catering to players who enjoy puzzles in a vibrant gaming environment. The point-and-click version enhances the interactive experience, while the NES and SNES adaptations focus on platforming mechanics. Overall, Mario Is Missing! provides a fun way to learn about geography and history through engaging gameplay.