I have a set of 2-star spiral plate, which has very high normal defense and makes me almost invulnerable in the first Tier, since monsters there supposedly do full normal damage.
However, I noticed that when I get hit, I take a lot more damage in lower (depth 5-7) Tier 1 danger rooms, with or without spiral plate. The only explanation I can think of is that the monsters there actually do split damage, like in Tier 2, since there are Tier 2 monsters in there sometimes.
Can anyone confirm this?
The colors of the bars that come off your body tell you what type of damage they do. If you didn't know: Danger Rooms borrow enemies from the next Tier, so they might just be that much harder. I still don't think they do anything but normal damage.