Donald in Maui Mallard DMG

Donald in Maui Mallard (E)[!] DMG: (Genesis)

normal shot          = 1
white                = 2
        yellow       = 2
white + yellow       = 4
                 red = 4
white            red = 6    (+5 white  shots) -1 each ammo
        yellow + red = 6    (+5 yellow shots) -1 each ammo
white + yellow + red = -255 (bosses differs ) -5 each ammo

any ninja hit = 4