The bottom of the GameCube is home to a variety of slots. Some are for holding game discs, while others are for holding game cartridges.
The slots on the bottom also allow for the attachment of controllers and other accessories. The purpose of these slots is not fully understood, but they may be used for storage or to provide a connection between the GameCube and other devices. .
Some people have speculated that the slots on the bottom of the GameCube may be used to allow games to be downloaded directly to the console. However, this has not been confirmed.
It is possible that the slots are simply for convenience, and do not have any additional functionality.