What??!?
You had a seriously good thing going there. You pitched and sold the idea of a serious ninja fight, and succeeded. This is something that is often attempted and often fails miserably. Congrats for that.
But what happened? The flash in its entirety was ruined, in my opinion, when it cut to "reality." My 12 year old brother literally walked out after this transitioned, and I just groaned at the cheese that ensued.
Pro animation, cool choereography, but mediocre as a whole.