What game mechanics do you absolutely hate?

[Alby_da_Wolf]

1) Automatic camera angle in 3rd person 3D games, unless it's implemented almost perfectly. Even if impemented perfectly, I prefer to be able to choose a fixed camera angle, generally behind the shoulders.
2) Control input axes solidal with the screen instead of the playing character in 3D games.
3) Having to jump through series of moving platforms and the like, dodging series of crushing ceilings and walls, grinding gears, if not for a few limited sections.
4) Power-ups in racers.
5) Not being able to pause to command troops in RTS and real-time tactical games.
6) Timed levels, except obviously in racers. I can stand timed sections, if appropriate, but once past them, I want to be free to roam and explore levels.
7) Points of no return within a level. Again, like for point 6, I like to calmly explore, particularly after clearing a level of foes. Like for point 6, I can stand limited use of them, if appropriate.
8) On-rails, except in some old 2D classics.

Point 1 and 2 made me hate Prince of Persia: Sands of Time, because they are particularly pesky combined and on PC with mouse and keyboard they're even worse.
Point 5 made me hate Myth III, also as it didn't allow to zoom-out enough to comfortably control and place troops on wide areas, let alone doing it quickly enough in real-time.
Point 7 made me a little disappointed in some Tomb Raider levels that I'd have liked to explore after defeating them, while luckily these games, unlike PoP, implemented automatic camera quite well.