Want to make a fighting game

Aye everyone,
My friend and I want to make a fighting game a little bit like smash bros (static camera, basic stage, % of damage dealt)

We begin the map designing, but I don’t know where to find the documentation to help us.

Can anyone refer us to a documentation?

You can started by following this tutorial series. It’s helped me here and there along the way. YouTube is a great source for training!