Jump Pack
From Sega Retro
The Dreamcast Jump Pack (referred to as the Dreamcast Vibration Pack in Europe and the Dreamcast Puru Puru Pack in Japan) is a insertable accessory for the Dreamcast controller's expansion port. When placed in the controller, it allow compatible games to give force feedback to the controller. It appears similar to a VMU, but lacks any screen or control and is bulkier in the back end, making it usually placed in the second expansion slot.
Gallery
US Jump Pack packaging
EU Vibration Pack packaging
JP Puru Puru Pack packaging
