Update>
I am on chapter 12 , with fully leveled Dragon Sword, three level Fire Inferno Ninpo, Windmill Shurkin and no, it does not get easier. Some of the regular enemies get easier, as there is fewer black ninja\'s, but the bosses just keep getting cheaper and cheaper. Wait until you fight two giant worms, who even when you have three life extenseions, can bite you and take half your life away, resulting in , if you get bit twice in one battle, the game is over.