This demo is for the unity tutorial i followed named roll a ball(Full tutorial here). The tutorial was built using latest Unity version 2017.1.0f3. This tutorial teaches the basics of unity development from setting up the game layout, adding game objects, programming in C# scripting, controlling game object through keyboard buttons, detecting collisions and collecting game objects with other game objects. The demo is the result of following the tutorial and is my version of the demo. You can view a video demo below as well.