Its good.
Its a good game. Its not real orginal, but its certainly uncommon kind of game play. Everything moves in the same pattern. There for its rather easy even on the highest lvl. I suggest changing it around, make it random patterns, and randomly change it during the game. A different back ground. And many more lvls. Its the start of a REALLY good game. A soild backbone of what can truly be a truly excellent game. ^^ Work at it a bit.
Oh one thing, there are people who can have seizure when exposed to stuff like this. Its not flashing lights exactly but its close. Put in a warning. Just incase. I'd hate for you to be sued.