Oh Lord. I just looked it up on Wikipedia. It's a vertical-only language for a start. How do you even discuss a vertical-only language in a language which is horizontal? Wikipedia has to write all the script horizontally, which would be like a page talking about English stacking all the letters vertically - it's weird.

From Wikipedia: "Computer operating systems have been slow to adopt support for the Mongolian script, and almost all have incomplete support or other text rendering difficulties."