Quite fun!
The thing that makes this so good is how you have interesting gameplay with simple controls. The only thing I probably didn't like was how you only had a minute to shoot things! It isn't even that much of a problem when you have to change colors. There are so many enemies, you just wait for the next ones. At first I thought it was that you could only kill enemies with the same color, but it was the other way around. That certainly makes it easier.
What's also cool is the music which set the tone well. It could have been detailed a little better, but still lots of fun to play. You had a pretty cool name to go with it. I have always enjoyed playing games like this, probably because of how much mobility the player has. Dang, and I still have yet to win any of the medals!