Unity Endless Runner Tutorial #1 - Introduction

I am trying to learn Unity all over again. I found this interesting tutorial from Reddit on endless runner. Here is the link:

http://catlikecoding.com/unity/tutorials/runner/

My version of the game could be found here:

http://hansnewbie.github.io/Stuff/Endless%20Runner%20Tutorial/build.html

Version Log:

https://github.com/HansNewbie/Stuff/blob/gh-pages/Endless%20Runner%20Tutorial/Version%20Log.md

I will try to improve the game bit by bit and share the code files via GitHub Gist. I will tag the posts with the same label as this (Unity Endless Runner Tutorial).

Also, to make the layout of my posts neater, I will use information box like below to pack the links together.

Original Tutorial
http://catlikecoding.com/unity/tutorials/runner/

My version of the game (Version Log)
http://www.hansadrian.com/Stuff/Endless%20Runner%20Tutorial/build.html

By the way, if you have not realized, I am using label/tag as topic of my post, so a series of post dealing on the same subject will have same label. Have a nice day :)