Vary nicely done...
This was very well done. It's definitely original. I mean I have played games like this where the goal is to dodge "enemy" blocks or dots while collecting other dots and blocks that give you points. I think the main thing that you did that made this stand out is the way you designed it. I really liked the way in which the difficulty gradually got tougher as the game went on and yet it still toned down when I began to get hit (but not so much that it made the game too easy). Here's my break down of the game...
Game play-
The game play was simple and to the point, but it still allowed for a fun experience. The controls were easy and the scoring system was simple and challenging (but not so challenging as to frustrate). The game was very easy to get into. It is a simple game, but not so simple that it is boring.
Sound-
The music fit the game well. The title music was nice and... strangely relaxing. The actual game play music was simple and upbeat. Simple music for a simple game. Good choice. I also liked the sound effects, especially the one when the game first begins. Very well done.
Replayability-
This isn't a game that I see myself playing frequently but I'll probably come back again to play it. The desire to beat the previous score and go longer than the last play through will probably bring many people back to play again.
Altogether, I rate this a five. It's not a game that I usually play, but as a skill game it is very well done. It feels like you put a lot of time and thought in to it. The result... A very well done skill game! Good Job!