The Canadian artist called ??? (myspace, 8bc) makes sweet dub/beats/skweee oriented Gameboy music with the occasional guest instrument. It’s like a less melancholic Quarta330 perhaps. I first heard him over at the great Metrodub netlabel, but for some reason it didn’t catch on to me. At some point he deleted all his songs from 8BC because he thought no one listened to it. When Dot.AY inspired him to re-upload them, I got more into his music.
Maybe it gets a bit too square-beepy in the long run (like most Gameboy music I suppose). But check out songs like Peanut Butter Brain and it’s wonky beats. Yum-yum. Maybe you can find something related here. Okay, gotta run. Enjoy!