Jesus this is hard.
I do like the idea, and the game itself isn't all that bad. The major problem I had with it was the fact that the keys that you had to press were all over the keyboard. It gets a little hard to do after about a minute or so. I would say only use half of the keyboard so it's a little bit easier.
Also, I think that staring at a blue background all the time is a little boring, I'd say have the background change colors once every 10 seconds, or have SOMETHING going on back there.
Overall though, decent effort.