MMA fighters show off their most terrifying costumes, Joe Lauzon the hands down winner for creepiest

It's Halloween, a once-a-year opportunity to gorge on tiny candies you stole from your children, peruse Instagram for women dressed up as slutty witches, and watch B-movie horror flicks in various states of inebriation.

How are your favorite mixed martial arts (MMA) fighters enjoying the spooky tradition? Let's take a look below:

Francisco Rivera as Batman:

My son Wanted us to save the world today We are ready for #Halloween2015 #Batman #Hulk #Turtle #UFCHalloween

A photo posted by Francisco "Cisco" Rivera (@ciscoriveraufc) on Oct 31, 2015 at 2:06pm PDT

Tony Ferguson as a skeleton:

Happy Halloween Be Safe Fam | #ElCucuy #MrsCucuy #BabyFergie @xtfergie #Downtime #TeamFerguson #TonyFergusonMMA #HappyHalloween | #skeletonshirt #DiadelosMuertos #Halloween Shenanigans | #Raiseyourhands #GoinDiamond

A video posted by @TonyFergusonxt (@tonyfergusonxt) on Oct 31, 2015 at 1:15pm PDT

Seth Baczynski as Ned Flanders:

Hi-dilly-ho, neighborinos

A photo posted by Seth Baczynski (@sethma) on Oct 31, 2015 at 7:51am PDT

Joe Lauzon as Mickey Mouse:

#Repost @joelauzon ・・・ It's only once a year I get to bust out this one. #happyhalloween #UFCHalloween

A photo posted by ufc (@ufc) on Oct 31, 2015 at 9:56am PDT

Welcome to Disney World! On your left is our torture chamber. On the right is nightmares for the rest of your life. https://t.co/fdHQ5z8kTH

— Tommy Toe Hold (@TommyToeHold) October 31, 2015

Jimi Manuwa from the film "The Purge":

Tonight we purge #purge #Halloween

A photo posted by Jimi Manuwa (@pb1_) on Oct 31, 2015 at 2:41pm PDT

Brendan Schaub (from 2008) as the ultra flamboyant Richard Simmons:

You kids be safe tonight happy Halloween via 2008

A photo posted by Brendan Schaub (@brendanschaub) on Oct 31, 2015 at 11:26am PDT

Demetrious Johnson as... some kind of weird cat creature:

Happy Halloween everybody.. You got Bambi and creeping skull guys. @mightywife did both our make-up. be safe tomorrow.

A photo posted by Demetrious Johnson (@mightymouse125) on Oct 30, 2015 at 9:35pm PDT

Dustin Poirier poses with Nestle Snipes (Din Thomas):

Hanging out with Nestle Snipes tonight!!! @DinThomas pic.twitter.com/XNVWhFxK0l

— The Diamond (@DustinPoirier) October 31, 2015

Forrest Griffin as, uh, supergirl in what looks to be a very old photo:

Halloween before Ella pic.twitter.com/90xjxlJN9M

— Forrest Griffin (@ForrestGriffin) October 31, 2015

Cain Velasquez as a zombie:

Just killed a few people...#familynight #happyhalloween #superfrenchie

A photo posted by Cain Velasquez (@officialcainvelasquez) on Oct 31, 2015 at 7:38pm PDT

Do you have any photos of MMA fighters that I missed? Post them in the comments and I'll add them to the Spooktacular list!