Excellent work!
I really gotta say that was awesome. You synched the sounds almost perfectly! Very unique style and I really liked the song altogether. The graphics were also very detailed. I can see that a lot of work was put into this flash.
Overall, I think that this flash's concept was very unique, with the robot always hammering nails as his programmed job. And the whole thing about the giant robot chasing him was also good too.
Great job.