When I was on one of my bouts of searching for music in the same style as the soundtrack from "Drive" (yes, I'm still listening to that synthy stuff years later), I came across some music which actually belongs to the genre of Chiptune.
Chiptune is a genre based on making music purely out of the sounds which can be produced from a gameboy. (Otherwise known as 8-bit music.) For many of us, I think our first exposure to this genre was the 8-bit version of "Threshold" from the "Scott Pilgrim Vs The World" soundtrack.
I was pointed to what is probably the best song from Unicorn Kid by a youtube user claiming it was the chiptune equivalent of selling out. So perhaps Unicorn Kid doesn't count as chiptune? (Not sure that adding in a few sounds which AREN'T straight from a gameboy is such a bad idea.) In any case, the song "Lion Hat" consists in a beautiful melding of squeaky noises which really appealed to me. I think others may find it annoying beep-y rubbish, but heck if you don't check it out you won't know what you are missing:
( More recommended Unicorn Kid music under the cut.... )