Super Mario Bros - Play Jenny
Following the events of Mario Bros., the game is set in the fantasy land of the Mushroom Kingdom after Mario and Luigi had arrived through a clay pipe from New York City.
In the Mushroom Kingdom, a tribe of turtle-like creatures known as the Koopa Troopas invade the kingdom and uses the magic of its king, Bowser, to turn its inhabitants, known as the Mushroom People, into inanimate objects such as bricks, stones and horsehair plants. Bowser and his army also kidnap Princess Toadstool, the princess of the Mushroom Kingdom and the only one with the ability to reverse Bowser's spell. After hearing the news, the brothers set out to save the princess and free the kingdom from Bowser. After traveling through various parts of the kingdom and fighting Bowser's forces along the way, they reach Bowser's final stronghold, where they are able to defeat him by striking an axe on the bridge suspended over lava he is standing on, breaking the bridge, defeating Bowser, freeing the princess and saving the Mushroom Kingdom.