Wow, 2 chiptune artists already? I'm a little late to the party. But yeah, I write chiptunes, too; legitimate stuff that can be played back on the console it was written for. While I've written for a few different systems, I'm most comfortable with the Famicom, so I'll only post some of those here. I've got my other works on my channel though, if you're interested.
Just a Fraud [Famicom, VRC6]
Cover of Assertive Fluttershy's "Boooring!" [Famicom Disk System]
Canterlot Heights [Famicom, VRC6+MMC5] (this one's hyperlinked because the forums didn't seem to want to just put the video there. Sorry about that.)
I'd be glad to help wherever I can. Maybe the workload could even be split between the three of us? That is, if you're alright with that or end up indecisive.
(If anything, I'd be secretly okay with the three of us chiptunists getting together and doing some kind of chiptune collab song or something, but I have a slight doubt that'd happen.)