Neos SI-10
This page was last modified 16:48, 8 December 2021 by Mars2000you. Based on work by Sdsnatcher73.


The Neos SI-10 is a cartridge allowing to superimpose pictures coming from an external video source with the pictures you have yourself drawn.

It contains 16kB RAM and two roms, a 8kB rom with the superimposing program, a 16kB ROM with the drawing program called Cheese with support for keyboard and mouse.

Launch price: ¥19,800 in Japan


Neos Si-10
Neos SI-10 with box and manual
Neos SI-10 cartridge front
Neos SI-10 cartridge back
Neos SI-10 cartridge top
Neos SI-10 cartridge bottom
Neos SI-10 box


  • RF output with channel selector switch
  • RCA audio and video input
  • RCA video output