After finding all the Yashichis and getting all the items/weapons/weapon upgrades, I have now started my play-through on Hard mode. This is RIDICULOUS. Enemies have more health, fire more often, and throw grenades all the time. It doesn't help matters that you take more damage from enemies, either. Gahhhhh. I was able to beat the first mission, but mission 04's boss has me so frustrated. You'd think it would be easy to just swing over to the platform in front of him and lob a grenade over, but no. You've got the enemies at the bottom of the stage shooting up at you, something they don't do on Normal. GRRRRRRRRR!