Polaris
1
I just programmed few sounds in an old-time 8-bit computer machines style and made short demo of it - enjoy! 
noxical
2
Cool.
Can you explain how you have done this?
I assume you use a fast arpegiator or something.
Polaris
3
Yes, the chord-like sound is fast arpeggiator, with default arpg. settings. Then chords for arpeggiator were sequenced on one track (track 2). The sound is 1 oscilator with relatively short decay, and signal run slightly through delay (to achieve falling sound of each chord hits) - normally on 8-bit computer I’d do this using two track (second one for silent repetitions).
Lead is done also on 1 osc with modulated PWM by LFO. The problem I had here is that A4 sequencer didn’t record pitch bend (even if CC&NRPN receive set to ON) and I was too lazy to do note slides ;).
Shor
4
Very cool!
I love these type of 8-bit inspired tracks. I especially love the 8-bit style arps.
I did something similar about a month ago when I was working on learning my AR+A4 (and coincidentally when that C64 addon dropped for the AR).
Mine wasn’t original work though, as I opted to make a cover of a track from The Last Ninja 2 for C64 
So much fun! The A4 is great for this.
Again, good job!