Gotta say again that I'm loving this game.
I hope they give us more DL content soon!
Bikini Samurai Squad on X360 had DLC in the form of extra characters, costumes, and (I think) missions. Hopefully this game follows up on that. Evange, Misha, and the two zombie sisters are just asking to be playable, lol. But hopefully they bring back Anna and Reiko as playable characters.