They should have a hugh off-road go-kart race! all around the Graal 2k1 overworld! with check points at certain places, and the plays hafta go to the towns or well know places (like the football stadium, cow farming, etc.) in a certain order, of which of corse they know, and check point would be there, the 1st to get back to the finish/start w/ all the check points passed, would win!!
