Problem with screen.

Hello. I have problem with screen. I’m making simply 2D game and I have problem with game screen. When I test my game in unity everything is good, but when I test my game on phone game screen is smaller and some parts of the screen are invisible. What should I do, on phone see the same screen with I see in unity?

((Sorry, but my english isn’t very good.))

You should choose resolution in the game view, then you could see, how your game will be looks like. And the you need to optimize your game for that resolution.