I noticed my emo when moves its legs makes some kind of sound similar to when the moving the mechanical joints?
You can hear the sound when emo completes reacting and just moves its body
The sound of the joints in that video is a little hard to hear, but EMO joints do make a slight mechanical sound when he moves around / dances or sits for a pat, which is normal.
I’d recommend keeping an eye on this just in case the sound changes or gets worse. But from what I can hear it sounds normal.