During a sunny Summer picnic, Mario and Luigi remembered fondly the good old days, soaring through the skies of Donut Plains. Reminiscing turned to daydreams, and the brothers soon drifted off to sleep. Deep in slumber, they shared a fantastic dream, flying peacefully above the clouds. But this dream turned dire, as suddenly the sky filled with Bullet Bills, Bonzai Bills, Bob-ombs, Bowser and more. Save the pair from this nightmare by gliding safely through the dangers as far as possible.