I use Logic Pro 9 and \"chipsounds\", by Plogue, in all my 8 Bit works.
Feel free to use any of my remixes for your own YouTube videos, just leave a link to my channel in the video description. ( ͡° ͜ʖ ͡°)
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I make all my retro remixes from scratch, it is a creative process in which I rework or re-imagine existing tracks into an retro inspired sound. Proof of creation will always be available if needed.