This game is a remake of the original 1985 NES game, The game also includes a challenge mode, and a versus game option. It is also a remake of Super Mario Bros.: The Lost Levels, but has to be unlocked first.
Even though this game is an enhanced port of the classic Super Mario Bros. NES game, You cannot see much of the screen like the NES version because the Game Boy Color not having the same dimensions as a standard television set.