I never realized that and I don’t have an answer for that.
Back then I considered Petrucci one of the most “technical” guitarists out there and we (nerdy teenagers) appreciated especially the high-speed and high-pitched parts, so it’s possible that there was an unconscious connection with chip music, that we also loved.
Don’t you consider “No Quarter” a cheesy 80’s music? I do.
I have realized that for some reason Ron can’t stop working on this game, so I don’t exclude that they might enrich that part of the game in future. 