Dear kemyzyz
The balls are very hard to react to. Very, very hard. Mainly because they both come out the same way and both are in the middle/right next to you when they come up. Making it very hard to react. Maybe give the player more space to see them coming but speed the game up as time goes on? Other then that the music is fine but if its not your own make sure to cite the source you got it from. Though this does have potential in its current state I don't think it deserves to be on newgrounds. Sorry. Put some time into revising it? Maybe add options to change the background color and song playing?
Good luck on improving the game and making it better as time goes on.
-From
timeattack