An excellent flash Sudoku
Seeing as I've never found another Sudoku on NG, this is an excellent first attempt. No bugs, well presented, and I started another game just to see if the game board was different each time, I'm glad to see it wasn't the same puzzle over and over again. I'm not a Sudoku enthusiast by any means, but I did find the puzzle quite easy, and only took about 4:33 to complete it. I would look forward to seeing you create another one, and I have a few suggestions that you've probably already thought of.
First, a longer sound clip, it got a bit repetative, and it would even be nice to see different tracks you could pick, ranging from slower, mellower tunes to faster paced ones, depending on the solver's needs. Next, a "congratulations" message (Or something of the sort) after completeing the puzzle succesfully. I admit I was a bit confused at first after hitting "Solution", I didn't know if it was over or if I had answered correctly. Also adding a "next puzzle" button would be nice, so you wouldn't have to start the whole flash over. If this were in place, you could have a personal best time that would update so you could easily see if you were getting better. And last, if a total high score table could be added to see who's the ultimate Sudoku master on NG, you could start a Newgrounds Sudoku craze. However, I know those can be quite difficult to make.
Whether or not you choose to create another, this was was a success. Great work.