Crazy Machines 2 (Gold Edition)
The menu is where the differences show. There's the Tutorial and World Tour from the main game, then there's the Back To The Shop add-on and there's still more...
The first chapter of experiments in the Back To The Shop add-on. Chapter two is greyed out because it cannot be accessed until Chapter one is complete.
The Download lab and the PhysX lab contain twenty experiments that can be accessed in any order, though the game does recommend that they are played sequentially
The player will see this screen a lot. It is displayed while the game loads the next/previous menu or experiment.
This is the "Rollin' rollin' rollin'" experiment. It is the first experiment in the Back To The Shop add-on