i completed assassins creed and watched the extremely long credits. but after that there is nothing you can do, all i found was that i can go on the computers.

How am I supose to kill the last boss. I'm stuck on insane and don't know how to kill him. I've shot him with snipers, bows and nothing kills him.

I just got all the skulls on halo 3 what are they supose to do It seems like they're making the game harder