Sprites made on Pixilart and All the Music was made on FamiStudio (except One which was made on Beepbox just because they already have a retro instrument) just a numberblocks band but i try to make it as nes accurate as i could. also before making a fanmade sequel or spinoff to true-retro. please use actual pixel art. and make music on famistudio or any retro music makers yourself. otherwise it can't be true-retro. as it's just basic retro that you used to see. you have to be actually creative to copy this idea, i am watching you arthur tube. you are not copying it like ageblocks.
thanks to Lospec for the NES Color Palettes and Numberblocks goes to Joe Elliot.