Cow-Boom! ramps up your adrenaline as you attempt to catch Ol' Bessie's milk in yer pail one drop at a time. Keep yer drops a flowin' and earn bonus scores for every Purple Nurple caught. It may seem easy at first, but Ol' Bessie can be meaner than a hound in an ally full of cats. If'n she gits orn'ry, ya best come a callin' and catch all the milk ya can.