Not bad.

As said before, for a second flash this is pretty good.
Gotta love the tenchu background music.
Some pointers on improving maybe:
-A better title screen (I mean, yellow? come on, at least make it ninja-ish like.. BLACK! :P)
-Some improvent on the timing of sounds (There was a part early in the beginning, that the gun fired but there was no sound.. so ya)
-Background of the environment instead of just one colour..
-Voice-acting maybe? (that would be cool..)
-And last but definitely not least, more action (baddies etc.)

Just some pointers, don't take em too serious if you know wht I mean.. Well, anywayz..

Great job, keep it up..

well....

I liked the Tenchu background music. Great job.

very nice

only your second? great job. i liked the background music and i also liked the ninja slicing the guy in half.

hope to see more from you in the future. keep it up!

you have an intuitive sense of flash

yeah, how could this be your second flash? a lot of time and hard-work i guess.
i'd like to delve into technical details more. i think that's missing from a lot of posts. we just review the content, rather than the execution.
As another second-time-flash-artist, how the hell did you make everything so fluid and intuitive?
was it just a lot, A LOT of time, easing in and easing out a lot?
what were your layers looking like, and how did you obtain such a seemingly effortless, yet very nicely done little peice? gotta know. good job and thanks.

Wow

This was great...the moves and the sound were seamless, and I loved the splitting of the guard. The ending had me really wanting the next sequel. Awesome work.