Nice
I'm probably giving this a high vote mainly because I'm a fan of these games. I think the problems were:
Repetetive Music-Try to include more
Hard-Simple-Hard Problem- This isn't exactly a problem, just a noticed aspect. Basically you start with like 5 easy, then a hard few, back to easy etc. You don't need to sort this out, I just thought I should point it out
Clearer ending-Again, you don't need to sort this. Either I didn't find the last one (I got up to the part where the screen starts moving to the right) or it messed up on me.
Something more-I don't know. Just add something to make it your own. Make em move or make something different that none of the games like this has had.
I would make a list of positive things but theres no need; everything else was good. I for one enjoyed this as I do all click the button/read the message type games. This one was fun but seemed to like originality. But it was great, fun, and in some places, challenging.
Overall, a nice entertaining game with positive feedback from me. I hope you make another one even longer with added puzzles. Great work.
~J~
P.S How come you and many others call these games "time-wasters"? They seem great fun to me!