I am using MakeHuman app to generate this "generic" version of Ultra Kid character. There maybe not one but many Ultra Kids out there. And you can make your own easily as 3D Figurine or as your own Avatar.
Blender Sushi Live "ULTRA CHILD" YouTube:
https://youtu.be/uCptxF5gpP4
MakeHuman App:
http://www.makehumancommunity.org