Please hear me out first. Yes, I know that the pause tutorial is out there somewhere but, whenever I created Pause Menu, that is created another layer just to show the pause menu. There is Play button, Mute button and Quit button. I set it to Invisible and it will visible whenever player press pause. But there is something strange happened, while the player is playing, not even press the pause button, the quit and the mute button is sometimes activated! So, the player will play the game and they keep clicking and then, poof! They back to the main screen. Is that a bug or what? Is invisible and visible layer is buggy? I don't know.