Step one:
First draw a circle with two gaps.
Step 2:
Then use arcs to draw two ears at the gap.
Step 3:
Draw the same shape inside the ear as the inner structure.
Step 4:
Then add eyes inside, draw the mouth with arcs and draw triangular fangs.
Step 5:
Draw an oval body under the head and small feet.
Step 6:
First draw two long arcs on both sides of the body.
Step 7:
Then connect them with wavy lines and add an arc structure inside.
Step 8:
Finally, paint it with a nice color and the bat is finished.