http://www.datadoor.net/dubcrt/
NEW BATCH OF DUBCRT CARTRIDGES NOW AVAILABLE VIA SHAREWARE+ ! EMAIL: Shareware+DUBCRT is a music album, interactive light synthesizer and remix-gadget released as a Commodore 64 cartridge. With music and visuals from some of the most prolific experimentalists of the 8-bit scenes, DUBCRT taps into 1960s modernist forms, 1970s dub, 2000s glitch aesthetics, and 2020s sustainable computing. DUBCRT features:Eight songs ranging from ambient to IDM and drum n' bassVisualisers that react to music, and that are user-controllableA secret remix module that allows you to re-interpret all the music on the cartridgeAll of this uses only 64 kilobytes. equivalent to 1.5 seconds of MP3-audio. This is possible thanks to clever use of resources, and by making all the graphics in PETSCII, the colourful and quirky ASCII-variant of the Commodore 64.
La carcasa esta, a parte de darle una imagen mas moderna a la vieja panera
Estoy seguro de que esa carcasa salio despues del 64C, asi que en el 86 al menos.
#C64 dev experimenting with multicolour character mode.. chunky pixels