Super Mario World: Super Mario Advance 2 is a port of 1991's Super Mario World, released originally on the Super Nintendo. Differences between the two versions vary from large changes such as being able to play as Luigi in single player, who has his now traditional floatier jump and slippier controls, to minor changes such as added voice clips. The GBA port also changes the difficulty, making it so that if Mario or Luigi are hit while they have a Fire Flower or Cape, they turn into Super Mario/Luigi rather than small Mario/Luigi. Yoshi coins are also included in every level, whereas they appear infrequently in Super Mario World, and it is now possible to save at any checkpoint or level completion. Some design concessions are made due to the limitations and differences of the hardware in comparison to the SNES, resulting in altered graphics and music, and the button layout is altered to fit the GBA's simpler controls.
Like other entries in the Super Mario Advance series, the game also includes a remake of the original Mario Bros., which supports multiplayer through both single-pak play, or multi-pak play with other titles in the Super Mario Advance series.