How to make games like super Mario

Question

what should I learn

Answer 1

I prefer c++ but you can make it with javascript too.
https://github.com/borislavvv00
see my works if yiu want.

Answer 2

With game engines like Unity3D or many other game engines

Answer 3

Game engines are used when you just want to make a game. When you want to make it faster. But if you want to learn to code then you should try to make your own game engine. When you make game without game engine you will learn much more. If we talk about c++ learn OpenGl or DirectX.