Yes, considering that it does not prompt you with keys on the keyboard, but action symbols. It takes quite a bit of practice, but you'll get the hang of it FAST.
You cant on AC2, but when Assassins Creed Brotherhood is released, you can then. :)
play assassins creed to find out
Yes, if u don't beat assassins creed 2 then you will be totally lost when you play assassins creed brotherhood. because it starts off exactly where it ended and you'll be sooo confused of who everyone is how this all started what happened I HIGHLY recommended you play assassins creed 2 before you play assassins creed brotherhood. :)))
no it does not have online play
No, but I would suggest playing AC2 before playing AC Brotherhood if you care about the plotline.
Yes
Assassins creed 4 is an actual game for the PS Vita
No
yes Save
Yes, you can.
Ubisoft
there is no demo