Disappointing amount of new stuff for a sequel.
It's still a good game, but it's plagued by the same major problems as its predecessors: it has no replay value once you figure the levels out, and it's still pretty easy to miss clicking the 'reset' or 'next level' buttons and accidentally fire another stickman. (This game actually can exasperate that problem because the menu keeps wandering around between levels.) As I said in my reviews for the other games in the Ragdoll Cannon series, it could be greatly improved with a level editor (with a way to share levels), and if the next level button had a hotkey. Since it's a full sequel, there's no excuse for not implementing at least one of these features.
Speaking of new features, this one has almost none to speak of. The main difference is the new graphics set, which isn't much of an improvement in my opinion. At least it has one new feature in the moving obstacles, but it could have been implemented more often. And while it does have 70 levels, the ones I played through (the first 20 or so) were either really easy, far too difficult for that early in the game, or relied on the same tricks over and over.
Don't get me wrong, it's still fun. But overall it's a disappointing, small step forward.