i like the idea of a chipmusic industry! :) just keep doing your thing, if making music like this makes you happy.
if you mean about getting gigs and releases, most people seem to self release these days, and gigs are up to you. ive no idea where you live, but fuck it, go to open mics that just consist of people playing covers on acoustic guitars and that one weird guy who rocks out playing guitar solos over metallica CDs and fuck with them. is there anyone promoting any kind of electronic or dance music gigs/parties in your town? get in touch. idk if your age would be an issue with venues in your country though.
otherwise, networking! go to chip gigs (travel/age eugh?), talk to people, introduce yourself as someone who hangs out in chip=win on facebook, talk about some funny drama you both saw there one time, or whatever. chances are that guy on his own over there has come down to do the same thing.
your style of music isn't my cup of tea, but i can hear a big difference in the sound what what you are recording from a game boy, compared to what appears to have been written with some other software.
its quite difficult to reply without knowing more about your specific recording set up. do you get the same problem when recording sound from a different external musical device, for example?
it really is pretty much a case of experimenting with settings, how the audio is routed through a mixer (if u use one, are you feeding the audio signal back on itself while recording? i get a strangely similar effect if this happens), different recording volumes, etc... until you achieve the sound you are happy with.
for mastering, i quite often end up with loads of different tracks recorded at different times, using different techniques, all at different volumes, but all i do is just drag them in to a DAW (i use acid) play with the volumes of each track and get them all feeling about the same by ear, a bit of light compression, maybe a little EQ, and go.
i dont really like mastering everything so the sound wave looks like just a huge solid block.