Top notch, but could be better
Erm, sorry if I'm mistaken, but the high score table doesn't seem to work...
Whatever I do, the high score table seems to be filled with the 'blank' names and scores of 0.
Another problem is that there's no warning of when you're going to run out of time to click on the number. Maybe it'd be better if you either showed a countdown and when it reaches 0 you lose (each time you click correctly you'd get some extra time) or maybe just have the screen fade to red or something to show that your time is nearly up. I'd personally prefer the 1st way.
Apart from that, the only slight niggle I have is that some bits kind of need you to know what's going on before you have a real chance. In the lightning bolt stage, the only way I got the '10' was by knowing in advance where it was going and intercepting it that way.
Overall though, it's a really enjoyable game. I loved the first one and with the scoring, bonus round and backgrounds, you've improved it further.
You just need to have some sort of visualisation for how much time is left, sort out the high score table and maybe have some randomised stuff for the next game.
I got a score of 3514 on my 2nd go, by the way. :)