In regards the earlier half, if this is what your remixes sound like, I'm anticipating your SPCs!
First Battle of the Bits entry by me... gave it a shot for Detroit. I hope to produce a SNES entry eventually once Summer Chip 2 comes around...
I heard extreme manipulation was encouraged... so I went for it. To produce this entry, I mostly cut the samples when needed. However, I also blew some of these samples way out of proportion by really cranking up the pitch and let Schism Tracker's interpolation magic produce these sounds that come as unintended side effects. I also used Schism Tracker's internal filter set way low for thundering, booming effect.
Two of the samples had special VST effects applied to them before importing them into Schism Tracker. I used Audacity to apply a DestroyFX Geometry effect to dirty pads, and I applied a DestroyFX Polarization effect to the PNS announcement with some chopping as well.