Question about game design for my son

Hi everyone,

I am preparing a birthday present for my son.

platform, enemies etc. all ready.

I am researching how I can move his hands and arms while running and jumping on his photo.

I look forward to your advice on this.

Below is a photo as an example.

I mean, as a character, his head is enough. The body part can also be something different ready made.

Thanks in advance.

 

Sprites can be animated using flipbooks or with a 2D rig (not sure about the exact term, but if you have all body parts as layers you can animate them).
Or get a premade 2d movement asset and replace the head

 

this one for the rigging,
https://unity.com/features/2danimation