How to make paper 2D Character animation in 3D?

Good morning! Everyone!
I have learn so many on different paper2D or side scroller unreal tutorials. But unfortunately I cannot found any tutorials that about 2Dsprite run on 3D side scroller/map.
I tried my best to make the character have running left and right animation, but now I am stuck on jumping and even more animation. (such as crouching, picking up item, basic attack) That make me can’t sleep well in the entire of november.
If someone know more tutorials that about 2D side scroller or 3D side scroller tutorials, please give me the link so i can learn more about it. Or some one know how to slove my ploblem, please help me.