Tin:The Incompetent Ninja not bad
I understand that this is your first flash, so obviously it wont be perfect, but that having been said, overall it wasnt that bad.
Graphics looked good, but movement was a bit clunky.
Sound was great, it definately made the flash more than anything.
as far as story, well, its obvious there wasnt supposed to be much of a "story" per se, however, im not sure where the whole "incompetent" part comes in, he seemed to handle himself very well :P
Overall not a bad flash, hopefully you learned something from it and will produce better ones in the future