Eddie Fitzgerald is the most imaginative cartoonist alive. He is also is the king of Halloween.
Here is his opus from Bakshi's Mighty Mouse Show.
WITCH TRICKS, PART 1:
WITCH TRICKS, PART 2:
Oh just so you can actually read the credits, Marc has graciously slowed them down to human speed so you can see how many famous names got their start from Ralph Bakshi...
THE NEW ADVENTURES OF MIGHTY MOUSE: CREDITS, slo-mo (4.0mb)