Shin Megami Tensei titles reward players who exploit enemy weaknesses with extra turns. Shin Megami Tensei: Devil Survivor stuck with this concept and its sequel, Devil Survivor 2, ups the ante with the "double extra turn" system. Hit a demon’s weak point once and you get a bonus attack. Do it a second time and you get another turn on top of that. Giving players two turns in a row should speed up battles.
While all demons in Shin Megami Tensei: Devil Survivor drew skills from a common pool, Devil Survivor 2 changes the formula. This game has race specific skills so Jack Frost, for example, may have some attacks that Haunt can never learn.
Shin Megami Tensei: Devil Survivor 2 comes out on July 28 in Japan and is slated for release early next year in North America.