I also recommend the aforementioned programs such as Renoise and Reason, although I've never tried making chipmusic on Reason yet.

I think disasterpiece uses Reason.

I'd recommend Famitracker.
Renoise is as good as trackers get, but it's not what you'd call 'simple'.

Magical 8bit Plug; simple, effective and free.

This is as simple as it gets.

I also recommend the aforementioned programs such as Renoise and Reason, although I've never tried making chipmusic on Reason yet.

You're being kind of vague.

Are you looking for a tracker? VSTs?

I'm going to guess VSTs since you use vocaloid. You could try Plogue's Chipsounds or just grab any sort of analog synth VST and just stick to the basic waveforms (square, pulse, triangle, sine, saw, noise). I've heard µB's VSTs are pretty nice, too.

Whatever you're using for sequencing, look for the Arpeggiator function and experiment with that. Use it with the waveforms arlen mentioned.

Humankind has tapped maybe 1% of that program's potential.

that is all.

Are you looking for a tracker? VSTs?

I'm going to guess VSTs since you use vocaloid. You could try Plogue's Chipsounds or just grab any sort of analog synth VST and just stick to the basic waveforms (square, pulse, triangle, sine, saw, noise). I've heard µB's VSTs are pretty nice, too.