How to make a side scroller?

Hey everyone. I am a beginner Unity and would like to use it to make a side scrolling game. All the tutorials that I find are either very vague or are just broken links. If someone could post a tutorial on this subject or at least point me in the right direction, I would greatly appreciate it.

Try 2D GamePlay Tutorial (download the pdf and project(mirror)).

A very good tutorial, only lacks a enemy, but isn’t hard to do if you know how to make enemies in 3D games. There are one bug or other in the last Unity version.