Borderlands 2 will be about a third bigger than Borderlands

[Tinman]

Borderlands 2 is “about a third” bigger than the original

Unts-unts-unts-unts, oooh oh, check me out!

[Graal]

Well, the original Borderlands wasn't that big to begin with. There was just so much to do you didn't notice it. There wasn't really even such a big variety in enemies. Most were just modified versions of previous enemies.