How will GBA work with Nintendo’s next-generation console, the GameCube?
All of the specifics on how GBA will interact with GameCube have not been revealed yet, but the fact that they will work together has been emphasized many times by various Nintendo officials. The two systems have been designed to work with each other in a variety of ways though the entire scope of the interaction is still unknown. At least one aspect of the two systems’ connecting will be having the GBA plug-into the NGC’s controller port and function as a secondary controller that uses the GBA screen to display information privately to a player. Additionally, data may be exchanged between games on the GameCube and GBA, not unlike games on the N64 and GBC (Mario Golf, for example). Whether real-time interaction between games on GameCube and GBA is possible remains to be seen, though is very much anticipated.