 Its story begins as a Magikoopa of the Koopalings attacks a stork delivering baby brothers Mario and Luigi.They succeed in kidnapping Baby Luigi, but Baby Mario falls out of the sky and onto the back of Yoshi, the titular friendly dinosaur and player-character of the single-player game.While the player controlled Mario and rode Yoshi in previous series games, in "Yoshi's Island", the player controls one of many Yoshis, which take turns traveling through 48 levels across six worlds to rescue Baby Luigi and reunite the brothers.