If you are looking to play the game without the risks of "free download" sites, consider these options:
: Check digital storefronts for remastered versions that run on modern hardware. : Devices like the Atari 2600+ Go to product viewer dialog for this item. Montezuma’s Revenge Free Download
: A legal non-profit that hosts "The MS-DOS Archive," allowing you to play the game directly in your browser. Steam/GOG If you are looking to play the game
or specialized "plug-and-play" consoles often include the title legally. Montezuma’s Revenge Free Download