Finally managed to beat up the giant lumberjack in each of the three difficulties! Difficult mod was *HELLA HARD*! But it felt so great to finally slay him!
The fact that his attacks are not a predictable pattern, but he actually aim at you, and that the house upheaval almost always result in a different setup is quite refreshing! And it definitely helped me going trough the dozen or so trial to beat the hard mode.