How do I make Android Button in-game controls?

I used GUI.RepeatButton for movement via force but I can’t use more than one button at a time. What should I use for buttons that can have more than one pressed at a time?

You need use multitouch and GUITexture. See example in my pregoing response. And for multitouch you need enable it, for example, in Awake(), as Input.multiTouchEnabled = true;