Step 6: That's it for the initial sketch of Koopa Troopa from Nindendo's Mario Brothers video games! You have the basic Koopa Troopa shape, so now go in and tighten your drawing. From this point on, press harder with your pencil in order to get darker lines and a more defined sketch.
Step 7: Draw Koopa Troopa's nose by using the circle as a guide. Draw a point on the bottom of it to form somewhat of a beak shape and draw smile line at the end of it. Also draw two curved lines on top for Koopa Troopa's nostrils.
Step 8: Darken in the basic shape of Koopa Troopa's head and the top portion of his eyes.
Step 9: Draw two curves below the shape of Koopa Troopa's eyes. For Koopa Troopa's eyelids, draw a small curved line at the end of the eye on the left that connects to the nose to create his cheek. Inside each eye, draw an oval and shade it in for his pupils. Don't shade in a small portion of each to represent glare.
Step 10: Under Koopa Troopa's head, draw two small vertical lines for his neck and two curved horizontal lines for the top of his shell or his "turtle neck."