We wrote this walkthrough using the 1.1.4 patch. This version is shown as "1.01.0004" on the main menu page of the game. See the downloads section for where to find the patch.

We wrote this walkthrough using the "normal" difficulty setting. The other difficulty settings don't seem to change the power of enemies (or if they do, it's very subtle). Instead, the difficulty settings only seem to affect things like how many allies you'll receive and how many enemies you'll have to face.