It'll take more than throwing punches to win this war. You're going to need some real fire power. Give me one of those puny Infernal Grenades, and I'll be more than happy to upgrade it to a Super Infernal Grenade. Boom.
Make sure you stay safe out there, kid. I'm going to go take care of something -- why don't you go see one of my former men: Watanabe Habuki; I'm sure he'll have a task for you.