Pretty good, mostly
I liked this game, for the most part. I liked the old school Omega Race-ish graphics. The fact that everything left a sort of "aura" behind made for a really neat effect, and since the enemies were color-coded, they each had their own 'atmosphere' that they created. So, well done there.
However, I thought it was a little too easy. I played to 415,000-something, never lost a life, never used a bomb. Then I decided to quit because I was seeing the same stuff over and over again. The only part that was really hard was the indestrucible cyan balls. It did get a bit boring after a while. (And why did it take so long for me to see the groups-of-squares? They weren't even that hard.)
Incidentally, why did I only have 1 bomb? If I had tried my bomb out, then I wouldn't have had any bombs through all those levels. Seems kind of pointless.