Imagic created a unit with all produced Intellivision games at the time for use at shows and retail outlets. It can be seen at the National Videogame Museum.
Media Links:
media0101.intvprime.com/ba4ef/intellivision-echo/Game-Cartridges/Imagic-Demo-Unit-at-National-Video-Game-Museum.jpg
Source Links:
www.nvmusa.org