Ed Boon from Midway and Jimmy Palmiotti of DC Comics announced four new additions to the Mortal Kombat Vs. DC Universe roster at Comic-Con today, including Green Lantern and The Joker from the DC side, with Jax and Kitana returning on the MK side. Boon also announced that Mr. Palmiotti himself would be squirreled away in the game as an unlockable character. He'd be very well hidden, Boon said, with a Johnny Cage-like model shown on screen.

We also got a look at some new environments, including the Fortress of Solitude, and a look at Captain Marvel's in-game model.

Boon also announced that an MK vs. DC comic book would included in the limited edition of the game, illustrated by John Tobias, co-creator of the Mortal Kombat series. The game's final boss and a the remaining line-up of fighters was promised to be announced over the next few months.

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