Using this accessory, vibrations that occur when playing the game (e.g. when bumping into obstacles) are transferred to the Nintendo DS so that you can experience the game in a very realistic manner.
The Rumble Pak is black and looks like a Game Boy Advance game. It is inserted into the Game Boy Advance module slot (SLOT-2) on the Nintendo DS and is only supported by games that have been especially designed with this function.
The Nintendo DS Rumble Pak is also compatible with the Nintendo DS Lite.