Cool
It would have been better had you gone totally ninja turtles style (more like the game, "turtles in time"), or gone completely dark like rockman neo. as it is, though, it was still pretty cool. I liked the liberties you took with the character design. kind of an aeon flux type thing. Also, see about adding sound effects, fixing a couple perspectives, smoothing out the animation, and finishing the ending or at least giving a more satisfying one. There's alot of potential here, it just needs to be brought up.
peace.