Cranium's Booster Box 2 is chock-full of more zany Cranium cards and contains four tubs of the modelling clay instead of just one. In fact, BB2 has the same content as the new "Cranium Primo" [money] but without the embossed, 'collectible' game tin and clay tins. If you've exhausted your original Cranium cards and the first Booster Box, you'll want to consider either the new Cranium Primo set with the complete game in 'upscale' packaging, or the Booster Box 2 which is just the cards & clay. In both Primo and BB2 (the cards are the same, remember) there are four tubs of clay to allow enough for all 4 teams to compete simultaneously in the new "Sculptorades." True Craniacs may insist on the fancy Cranium Primo package, but we're happy to add the two Booster Boxes to our original Cranium set. For [money] we have "Cranium Primo" just without the bells & whistles!