I like that you used the tv static effect too. Neat concept for a game, but I could not get by that "MEOW" no matter how many times I tried.
In regards to the music, it did not bother me, though I can see why you suggest not using loud volume or headphones. If you want to replace it with something similar (but less piercing), there is a person on OpenGameArt called PlayOnLoop who releases Creative Commons music in a Nintendo style that sound a bit like this current sound track. I have used their music myself a couple time and all you have to do is credit the creator.