How do i make a completely 2D game?

i want to make a game where the player can only move left and right, like a platformer. I want to learn how to set the camera and the controls.

There are many resources online that can help you do this.

Here's a link to get you started with controlling the camera: https://developer.roblox.com/en-us/articles/Camera-manipulation

Here's a tutorial series on how to make 2D Platformer on Roblox: https://www.youtube.com/watch?v=KV5AM-yYAlk