Platforming sections in FPS games.
Really, really long sequences that span multiple areas where you can't save, which you have to clear all over again if you log out.
Boss fights that bug out AFTER you beat them. Carp you, BNK3R.
Sudden QTEs at the end of a long cut-scene that takes you by complete surprise because you decided to take a sip of water, which then means you die and have to do that segment over, including sitting through the cut-scene again. Absolutely rage inducing. I actually gave the Crysis 2 game case double middle fingers for like a solid minute.








