Great, really good.
I'm glad Wonderella isn't the only one who can jump hella high. It's like all she talks about so it's about time someone else figured it out.
This had lots of fantastic 'flash game qualities': relatively short, uncomplicated(especially in plot), great leveling system without making the character too powerful, automatic save feature, very responsive controls, and none of the action was mindless. Also scorekeeping, for the players who're into that. The projectile AI was consistent and the options for avoidance were comprehensive. As far as this type of game goes, this was great.
All I can think of for potential improvement is some different-style features. Like, this game would also be lots of fun as a 2D-scroller, or a 2D action game if the little guy had weapons or powers or something(to use the mouse, you know?), but that's all just preferential. This was a solid, fun diversion from life, all the way to the end boss.