Can you kill everyone inside the world? And by everyone, i mean just that.. No key-Npcs bullsh*t like in oblivion..
Yes, just with a very very few exceptions like your own father.
your Player attributes directly influence your dialogue options? In fallout1/2 if you had Intelligence 1 then all dialogues would be like: "If Megaton goes boom you give Chosen One Money?"
Yes, they do indeed. I just discovered that yesterday infact when I got some more skills in Intelligence. If you have more skills in charm or other ones, you get other options aswell.
Can you kick a rat in the groin?
If you use unarmed combat, you ocassionally will kick. So yes
Can you get ass-raped by a big, green supermutant?
Yep
Are your dialogue options as bad as in Oblivion like that joke picture i found on the net?
No, they are actually very authentic and very real (except for some "tunnel snake" dialogs in the beginning".
Have no fear, Fallout 3 is a worthy sequel, even if i would have liked a more fallout 1/2 oriented V.A.T.S. better.
Oh! And the storyline is huge and with lots of unexpected turns.
