In the game Crab My Crystals you have to find the hidden crystals before the shark's dinner-time. The shark icon will flash red when he is coming. When you see a crystal then click on it. To dig/move something then click it as well. ARROW KEYS TO MOVE (IMPORTANT). If there are any errors, let me know in the comments. CLICK ON CRYSTALS
Credits: Thecatsear, @-FlyingPig- (HARD) but when you know were they are then you can do it better.