Sorry, it had been a minute since I messed with KO PSP, so I was mistaken. Defender itself no longer exists as it had been replaced with Durandal, and therefore can no longer be obtained, and Ninja won't Throw those items.
As for the Acacia Hat, I think I fixed the problem... hopefully. It'll be fixed in the next update. It's supposed to be a MD only item, but since it used to be the Black Cowl, I may have accidentally left it on a storyline enemy.
As for the title screen, I believe Lijj made it!
Are you enjoying MD and the endgame stuff so far, MJ?