"Insta Speed, the most popular compiler. The fast finish for your programs.
Program like the pro's on your Commodore 64 computer. Send your software through this compiler. Without rewriting a single line, its transformed into a more efficient form: binary machine language. Run an average of thirty times faster (especially important to 'sprites' in video games). Larger programs are reduced to as little as one-half the memory and disk space."
Software cartridge, dongle and user manual in original packaging.