It isn't the lack of blood, just that the game continues to frustrate. I'm now level 80 and feel that my character should just be tougher. I can't remember which dungeon I'm currently doing (lower Plerereemmdfrgreg I think) and just beat the first boss, which was 3 big enemies, 1 with a gun, the other 2 slowly coming at you with their swords. This was difficult enough and now I've moved onto level 2. Not sure what the name of the enemies are but they are robed and I'll call them "death" (I've encountered them before but they are now more difficult). I'm level 80 and 2 hits from them kill me? WTF?
Then in the nightmare place (next to the lecture hall), jellyfish singing creatures that kill me easily with Frenzy. What level do you have to be so this doesn't feel like work/grinding non stop?
On your first playthrough, level 80 is just dandy for the point you're at. It's not an easy game - you just have to deal with that. Those Jellyfish creatures (Brain Trusts) are one of the nastiest in the game, but you deal with them by dressing up in the Ashen Hunter set you should have picked up by now (buy it from the Insight messengers - available after you killed the machine gunner on top of the tower in Old Yarnham) and using sedatives; also equipping a decent anti-frenzy caryll rune (you get a -200 one by the viper pits in Forbidden Woods). You are very close to the end now. It'll soon be over.
That metallic/electrical boss is Darkbeast Paarl, and you don't have to beat it. Just avoid it altogether. I don't remember 3 ninja type bosses in either Nightmare Frontier or Nightmare of Mensis. You've beaten the Shadows of Yarnham at the end of Forbidden Woods, and Rom after that, yeah?
That was partly true for me. I had to summon for different bosses in NG+ than in my first game. For example first time around I had to summon for Rom but after that I did it on my own and in my first game I killed Amelia on my own but had to summon 2nd time round.