Released by Imperial Toys, the “Bone Heads Bounce Game Board” is a plastic square pad that is used as a platform to throw your Jojo’s on.
It came with two “Special Edition” (painted) Jojo’s.
Dimensions (pack): Unknown
Dimensions (pad): 145mm x 145mm x 3mm (h x w x d).
Some listing of sealed pads found online can sometimes show the same two Jojo’s (Mumbles and Doc) included in the pack. It’s unsure if the included Jojo’s were really random or if it’s the same pad that resurge online.