I'm currently writing an in-depth game mechanics guide to dd2. It's mostly done, although I'm still adding details, formatting, and going over the data. It'll contain all HP values for all difficulties, damage values for all attacks, and other relevant information. It's surprisingly complex for an NES game.
I'll update this thread when I submit the final version.
I remember playing this game. (It wasn't my own; it was "inherited.") I do still have it, although my NES isn't hooked up any more. Good times... --- Knowledge is power, and ignorance is bliss. Unfortunately, most people won't settle for one; they usually end up with neither.