how do I make the numbers on a GUI layer go up with the value of a script, so I could make a speedometer/timer/score?) -Thanks
What's a 'GUI layer'? Are you just asking how to create a UI element that displays a score or some other bit of information?
If so, a good place to start might be GUI/GUILayout.Label(), which is a fairly straightforward way to display a numerical value (or other bit of text) onscreen.