Not bad.
A definite improvement over the first one, but some draw backs are still there.
Goods -
Pretty picutres, all the art feel and looks like a old game, and the sci fi pulls off well.
Music, it varies and is usually delightful.
Gameplay is fast paced shooter action.
Cons-
The pull is story mode, and once you beat story mode, why replay missions in a different mode?
Way, WAY to difficult to make in gamez monez. Simply put, once again, its too much of a grind and has no real draw to do so. Sure its nice to play in a new skin, but gaining the money for a new weapon is ridicolus and your better off resorting to cheating.
Overall, its a good game, but has little re-playability and even less draw to the store in game. Play it, its worth your time.