Holy. Shit.
This has to be one of the most advanced, professionally scripted flash games ever developed. As a junior flash dev, I can relate to how tricky it can be to actually script a game that is based around timed attacks, dynamic maneuvers, and other such aspects. AMAZING.
The art is perfect, and each individual character was done to perfection. Even better, the animations were top-notch, considering it was all frame-by-frame.
I was also impressed with how flexible and dynamic the actual game engine was (the action-cam was great), and how the damage inflicted corresponded perfectly with the animations.
However, my only beef is that, although you chose many worthy NG celebs (Pico, Alloy, Salad Fingers), it seems you missed some pretty important ones, like Dad (from Dad'n Me), and possibly the Madness protagonist.
All in all, this has to be one of the most dynamic flash games in creation, featuring insane art/animation, and an awesome engine.