- They do talk, but only in high-pitched gibberish that only Night Ninja understands.
- They are basically Night Ninja's helpers, and are wherever he is to cause trouble.
- Similar to Luna Girl's moths, they get pushed around constantly by Night Ninja. In "Owlette and the Owletteenies", their patience wears thin and they decide to join Owlette.
- It is unknown how many Ninjalinos there are, since their numbers vary from episode to episode.