What better way to celebrate Mordecai on Halloween then to dress him up in a costume that best describes what he's like. Here is "how to draw Halloween Mordecai", step by step in his Frankenstein costume. Instead of trick or treating he is deciding to trick the treaters just because he can. Anyways, Mordecai might be a bit more difficult because he is a little more detailed. Anyways, have fun folks and be sure to enjoy the drawing day.