Those Grongi games in Kuuga were indeed messed up. I remember when I first watched and was shocked when one seemed to crush two women with a car it seemed like the writers themselves were just coming up with new messed up ways/reasons to kill right along with the Grongi.
I will say this about Blade, those early episodes where they had Undead literally massacring people and stacking piles of dead bodies all over the place.
For some reason I also can't get this one scene where a bus load of kids is attacked and they cut away never mentioning or showing the end result out of my mind, although I don't remember which Heisei series it was.