The demo features roughly twenty minutes of campaign gameplay, playable solo or in co-op. In addition to the campaign gameplay, the demo also features three levels playable in mulitplayer.
The Dynamic Duo of Batman and Robin join other famous super heroes from the DC Universe including Superman, Wonder Woman and Green Lantern to save Gotham City from destruction at the hands of the notorious villains Lex Luthor and the Joker.
Gratuitous Tank Battles is the spiritual successor to Gratuitous Space Battles, the \'hands-off\' battle simulation set in a universe at perpetual war.