This is another iconic D&Dism in a setting book; a bunch of monsters that are "unique" to the setting. Honestly, looking at the list, I don't see anything that really is unique. Rather, there are some light "tweaks" from a fluff and mechanics perspective. The fluff can be tweaked using existing monsters, and the mechanical tweaks are only noticeable if you have a mechanics heavy system. I don't think most of them are worth new mechanics in Microlite. Some of the stuff, like the daelkyr, is just a fluff tweak to a daemon, for instance. The Quori are probably the most unique creature on the monster list, but I've been a little hesitant on using them in Remixed anyway. I also dislike the Undying vs Undead; there's no such thing as Undying in Remixed, for instance.
If you need to create anything in Microlite from this, you'll be on your own; I'll refer to this chapter the same as I did to Adventuring Equipment or Magical Items.