The folks over at CZounds have put together a set of presets inspired by the popular Netflix series Stranger Things. The collection is free and includes 16 patches for you to revel in all the 80s inspired, soundtrack delight.
This is a downloadable zip of 16 .SYX format data files. Use a SysEx transfer program for Mac or PC and a MIDI connection to send patch data from your computer to your Casio CZ synthesizer (CZ-101, CZ-1000, CZ-3000, CZ-5000, CZ-1).
You can download the patches here: http://czounds.com/downloads/cztranger-things