This is not an official Nintendo game. It is a popular ROM hack (modification) called "Super Mario 64: Multiplayer" (often based on the "Split Screen" or "Co-op Deluxe" branch).
: Unlike other co-op mods that tether players together, this version allows Mario and Luigi to roam different parts of the same level independently. Star Collection Synergy Super Mario 64 Multiplayer Rom Pantalla Dividida
Una vez dentro del juego, usualmente el segundo jugador debe presionar Start en el menú de archivos o en el jardín del castillo. La pantalla se dividirá automáticamente. This is not an official Nintendo game
Troubleshooting
: In a display of true teamwork, both players can ground-pound together to trigger secrets or grab two Power Stars at once. Behind the Legend: "L is Real 2401" Super Mario 64 Multiplayer Rom Pantalla Dividida