Step 1: First, put the colored side of the square paper upward, and fold the left and right corners and the upper and lower corners of the paper in half respectively, and of course, unfold it at the same time, leaving diagonal creases.

Step 2: Then fold the top corner and bottom corner to the middle transverse crease respectively.

Step 3: Fold the top corner and bottom corner of DIY origami in half slightly towards the middle.

Step 4: Pull out the folded part to the left according to the white rough cutting head.

Step 5: Then fold the two corners of the previous operation slightly to the right.

Step 6: Then turn the whole origami over.

Step 7: Then fold the left and right corners to the midpoint.

Step 8: overlap the right corner once.

Step 9: Fold the upper and lower corners formed by folding the right side inward according to the white arrow symbol.

Step 10: Then fold the whole DIY origami.

Step 1 1: Fold the lower left corner of DIY origami inward.

Step 12: naturally draw the eyes of the puffer fish with a brush, and a very beautiful origami puffer fish baby will be ready!