Hallo I’m developing a game and I need many object for it, anyone can advise me where I can download free characters with animation that I can use like: oto and sinbad, compatible with jme3 ??
first of all u need working game, and just then fill it with data. or do u already have working game?
ok, I’m learning to use jme3 with oto and sinbad, I’ve a question that is in my mind in the beginning : I use oto and I understand that for use in all way, I must have this file oto.j3m, oto.jpg , oto.material , oto.mesh.xml,oto.skeleton.xml but I watch that there are many type of format like obj ecc. What format character I must download ?and, what I can do for using it in a simple way like oto with animation? Please explain me clearly I’m confused 
Try the tutorials.
For example they have things like this:jME SDK Usecase Demo 2 - YouTube
this: https://wiki.jmonkeyengine.org/legacy/doku.php/jme3:beginner:hello_asset
and this: https://wiki.jmonkeyengine.org/legacy/doku.php/jme3:external:blender
and even this: https://wiki.jmonkeyengine.org/legacy/doku.php/jme3:external:3dsmax
thanks 