 In addition, there are also various items hidden beneath barrels in each level which will give Momotaro bonus points.Every floor of the ship has a set number of pirates to be destroyed, as well as a single "Bow", a special pirate that regenerates each time it is defeated.Every fourth level in the game yields a bonus level in which the barrels are worth an increased number of points, and a group of enemies entirely made up of Bows (which do not regenerate in this case).