The bishop's arms take two hits each from either the front or the back. The horror's left arm(same side as stairs) always takes one hit from either side. The right arm takes two hits from the front or one from the back.
The circle of power grab is pretty easy as long as you face at a slight angle before examining it. The tapestry burn doesn't work if you're too far away. The pressure plate works the same as long as you don't go too far to the side.
The blue zombie should give more time than green to fix the urns. I want to point out that when I examine the red urn the game does the fast zoom because the singing zombie is blocking the camera, not Anthony; you can tell because Anthony doesn't disappear but the singing zombie does. It's pretty inconsistent (i think) so you'll probably have to get closer to the red urn than I do in the TAS.
The circle of power grab is pretty easy as long as you face at a slight angle before examining it. The tapestry burn doesn't work if you're too far away. The pressure plate works the same as long as you don't go too far to the side.
The blue zombie should give more time than green to fix the urns. I want to point out that when I examine the red urn the game does the fast zoom because the singing zombie is blocking the camera, not Anthony; you can tell because Anthony doesn't disappear but the singing zombie does. It's pretty inconsistent (i think) so you'll probably have to get closer to the red urn than I do in the TAS.