Practice using Scratch's coordinate system by hunting for buried coins! Move Scratch by pointing your mouse. Try to match up Scratch's coordinates with the target coordinates at the top left. His metal detector will beep at higher pitches to tell you you're getting warmer. Practice Mode: A helper grid assists your search. Coordinates start off simple and get progressively more complex. Timed Mode: Coordinates are randomly generated. Find 10 coins as quickly as possible.