they could fail to impress from a gameplay standpoint. While new creatures might lend a bit of visual variety to the game, without decent A.I.
Of course, the skags will be back, as will the classic psychos and midgets. A more sci-fi enemy type is a robot called a Loader, and we've been told there are several various categories of Loader, each with its own skill set. Borderlands 2 seems to be embracing some fantasy elements, bringing us several creatures that are a bit dragonish in appearance.
Along with the new environments comes a broader assortment of creatures.