Instructions
Complete the marble puzzle in the Wild Woods. Ride the minecart south until you see a sword in a stone. Put one red, one blue and one green marble, in no particular order, into the three slots under the "sword." You will automatically remove the sword from the stone. The sword is actually a spoon.
Give the inventor's wife the spoon in the Wild Woods. The wife will give the spoon to the inventor and he will complete the Hamapault 2 catapult for later use.
Approach the front gate of Spat Tower. You must see a scene in which you discover you cannot open the gate in order to continue.
Visit the inventor in Wild Woods. He will now let you use his Hamapault 2 catapult to fly over the gate and into Spat Tower. Approach the Hamapault 2 and select "Stickie."