The New Super Mario Bros. is the first to be part of the main Super Mario Bros series since Super Mario Sunshine 2 in 2002 .
It was the first original side-scrolling platform game starring Mario since Super Mario Land 2 : 6 Golden Cups in 1992 , and the first game to be a part of the main Super Mario Bros series since Super Mario Sunshine 2 in 2002.The game 's plot is similar to those of other side-scrolling Mario games .