Fold the paper in half vertically and horizontally, then unfold it. Fold all four corners to the center, then turn the paper upside down. Fold all four corners to the center, then, again, turn the paper over. Again, fold the corners to the center, then turn the paper. Pull the bottom opening to the left and right, as shown in the picture, and squash. The result should look like the figure in step 6. Turn the model upside down. Unfold the four corners that have been folded to the center in step 4, then turn the model. Unfold the corners on the left and right, then turn the model. Bring the encircled corner to the center with a valley fold and repeat with the other three corners. Fold along the other marked lines to get the result in step 10. In doing so, you will form the front legs, which should be folded down to get a flat model. Finally, turn the model over. Put a finger at the pointed position and press down while folding along the dotted lines. Fold the model in half vertically. In the top, pull the topmost layer (the head or the gorilla) up and make a vertical mountain fold, also make a valley fold in the second layer directly below. The model won't remain flat but will take a three-dimensional shape. Adjust the legs. The gorilla is done.