i want to make a sample tutorial screen in my game just like subway surfers or temple run so that any person who is playing my game can understand the functions and controls of my game.
in this screen the player is going to understand how the game works and he has to do play the game.
I’m not quite sure what your are asking but If you are needing to know how to use Unity then I would suggest to watch a YouTube series on using the editor.
If you already know how to use Unity and have your game then I would just add a button on your GUI that says “How To Play” and have it load your tutorial scene. Then write a script that will show text on the controls and have some tasks to complete.