In level 2, one of the most annoying enemies in the entire game pops up in the graveyard and soul gate sections -- undead. They swarm you and attack by throwing blood at you, which can drastically mess with the game's shoddy frame rate and really mess you up, and even kill you despite the small damage.
There's a simple trick to get around this, though. Just turn the blood off in the options menu, and presto! The undead animation to throw blood at you still happens, but since the blood is turned off they won't actually throw anything at you. Now the undead go from one of the most annoying enemies to the easiest, and the best part of all is this doesn't mess with the game's true ending trigger. If you use cheats to clear Turok 2, the game doesn't give you the true ending. But apparently, messing up swarms of enemies by turning the blood off is a-okay.