What are your pet hates in games

[Cheebee]

- Absence of sufficient savepoints (the Blob, for one).
- Unfair difficulty (*cough Starfox Adventures Test of Fear cough*).
- Bad level design.
- Bad collision-detection. Related to that: water that doesn't respond to obstacles (i.e. water that looks like it keeps on flowing when it encounters walls etc., effectively flowing through them).
- Useless sidekicks and/or allies. What's the point of them helping you if they never help you?!
- Pop-ups. Arrgh, the bane of immersion.
- Bad lip synching (HOTD: Overkill, omg that's bad :p).
- Stuff that makes no sense. What, I can shoot, blow up, hack, smash and destroy rocks, boulders, barrels, tanks, enemies and trees, but to get through this plain, thin wooden door I need to get a key?

Well I could go on for quite some time. :p There's loads.