Play around with the items. How to make the items: Big Wooden Nail, 1) Nail, 2) Wood & 3) Sugar. Hyperactive Door, 1) Wood, 2) Nails & 3) Sugar. Trick Donut, 1) Wood 2, Sugar & 3) Nails. If the combination doesn't work, you might has well not done the combination right.
Dr-Strange_VII for idea. Game history: V0.1, the game. V0.2, Added the Clear Button with A Splash sound. If this enters the SDS scientific discoveries studio, V0.3 will come out.