Board Thread:Questions and Answers/@comment-112.134.160.180-20130312090818/@comment-208.108.126.253-20130312130954

They have added a lot of new aliens. They are Feedback, Bloxx, Shocksquatch (I count him as new because he was never used in Ultimate Alien, only in the Crossover.), Gravattack, Crashhopper, Articguana (Technically, since Present Ben hadn't turned into him yet.), Ball Weevil, Walkatrout, Pesky Dust, Molestache, The Worst, Kicken Hawk, Toepick, and Astrodactyl. It is unknown if any other new aliens appear though (I really hope that more do!)