Unlike Mortal Kombat Vs. DC Universe, this game is taking a full 2D-control style, like classic MK, pushing up makes you jump, pushing down makes you duck and there's no other ways about it. I think this is a good thing overall, I was getting tired of every fighting game trying to be Soul Calibur anyway, and now Soul Calibur is trying to be Street Fighter for some stupid reason, but, once again, I digress.
I just played through the Story Mode, but I plan to go back and do all the other stuff too. There's a challenge mode with over 200 missions, plus classic and online play. But I haven't done too much of any of those yet, so I'm just going to stick to the Story for this one.
In the story, The Flash and Batman are chasing The Joker, only to suddenly be pulled into some kind of inter-dimensional vortex and taken to another universe. In this parallel Earth, The Joker killed Lois Lane, which drove Superman insane and turned him evil. So, the Justice League is now more a league of Superman's minions, because if anyone doesn't do what he says, he's going to kill you.

Overall: B-. Once again, I'm only grading the story mode. I like the combat style and how free-flowing combos are, plus the easy to learn special moves for every character is pretty cool. The story's just kind of tedious though, too much story, not enough gameplay. I'm glad there's other modes, because if this was it I would be very disappointed.