Timesplitters 4 and a sequel to Banjo & Kazooie: Nuts & Bolts are the two that I want but have made peace with never happening. I still don't believe that Fez 2 is actually cancelled so I guess that's an honourable mention.
This question really depends on if it means "defining games of the generation" or "my favourite games of the generation" because, at least for me, those are two completely different things but "game of the generation" can mean either of those. If we take it as the former then the bigjeffrey's list is pretty much spot-on save for possibly Alan Wake. Though I'd assume most of the people in the post are taking it as the latter, hence why games like Viva Pinata and Wii Sports Resort are mentioned.
Still, this is cool to see. Amir Rao's picks are fantastic.
This depends. I'd say World of Warcraft but if this applies to everyone in the world then I'd depend on a whole bunch of other people also choosing World of Warcraft as their one game to play, so in that situation I'd probably be safe and pick either Dark Souls 2 or Castlevania: Symphony of the Night.
Actually I change my mind: Civilization V w/ all the DLC
I'd love to say that the time period doesn't matter and I'll give anything a fair shot, but I generally try to avoid hearing anything that's Classic rock or clearly inspired by rock bands of the 60s/70s. I have a vague, highly hypocritical idea of what kind of music I really don't like and more often than not 70s rock/80s hard rock (think Guns n Roses) falls under that.
As for music I'm into? Some modern rap music, 80s Pop(?), 00s alternative/indie stuff, RnB and various kinds of electronic music. I also wholeheartedly believe these two songs are the greatest songs ever made:
There are a couple that spring to mind. Guitar Hero Metallica was not very good (even as someone who was way into Metallica when they bought it), Dishonored mocks me every time I look at it on my shelf. I think my worst purchase was Castlevania: Harmony of Despair.