Catz, Ratz and Batz

The animals are on the loose in the dice game Catz, Ratz and Batz! Roll the nine dice, then decide which to keep and which to reroll. Catz are good and multiply your score – unless you need them to cancel out the ratz, who will otherwise chew your points away. Batz, fluttering all over the place as they will, can be good or bad depending on what else you roll; they're good if you roll 3s, neutral if you roll 5s, and bad if you roll 7s. The first player to collect 250 points wins!