I don't see why people like this so much.
I can't take it seriously, for one the scenes were jumping around every 5 seconds, so it'd be red (saying colors is shorter then names) vs slash for a second then WAM it's orange killing ninjas, WAM light blue killing ninjas, WAM back to Red it went around so quickly it sounded kind of corny and they're turtles from a kids TV show. That's like if I got Dora the Explorer into a series of her selling drugs with boots and was dramatic and depressing and everyone took it seriously. How does everyone do that?
I just don't really like the idea of this flash series, your graphics/animation talent is ok though, if you could stick to one scene for more then a few seconds.