I dont see a problem with not knowing Tatsunoko characters. So what if you dont know them. Sure the franchises is what appeals people to the VS. series but if you dont know them I dont see why you cant just think of them as new characters to you which they will be to most people Just like a new series. If it looks good so what about where the characters come from.
If you dont like fighting games or even care for this one why bother posting?