 A Link to the Past (originally an SNES title) was ported to the handheld Game  Boy Advance in 2003. Although the core game remained faithful to the  original, much of the text had been changed. Aside from the main game,  another game was included in the cart titled "Four Swords," the first ever  multiplayer Zelda title. The two games interact together, as achieving  certain objectives in the Four Swords game will occasionally affect things in  A Link to the Past.