Didnt they say you have to pay for each character individually or is there a structure im missing. Does this game have a story mode or is it just a multiplayer game. If you have to buy each character id guess its just an online game only.
Characters can be bought individually or you can pay full retail for the entire game.
There is a single player arcade mode, though I'm not sure how much "story" will be entailed. The original KI didn't have much of a story.
And no it's not online only. You can play totaly offline against the computer or a local friend.