Hey, thanks for the comment, glad you like the game!
Learning unity is easy, but getting good at it takes a long time. Gorn is not that simple to make as everything is physics driven, and especially the cutting apart of meshes will be tricky if you are a newcomer. If you want to get an idea of how it works, you can play with this project: http://makegamessa.com/discussion/4379/the-source-for-the-project-i-made-for-my-amaze-driving-characters-in-physx-talk which was made by a coworker of mine and is based off similar principles.