Halloween weekend isn't just for kids. Adults love to get in on the fun as well, and I always find it interesting how people's personalities seem to change when they're in a costume. I also enjoy seeing the time and effort revelers put into their costumes. A handful of bars around town are offering some pretty decent cash prizes too. Scroll down to see some of your best bets for adult Halloween fun this weekend in Billings.

Heidi Klum's 18th Annual Halloween Party presented by Party City and SVEDKA Vodka at Magic Hour Rooftop Bar & Lounge at Moxy Times Square - Inside
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Play Inn

Join the Play Inn for a special Halloween-themed karaoke night on Friday, October 28.

Bugz's Bar and Casino

This popular Heights hotspot has two great events on Saturday. Starting at 2 pm, stop by for Halloween Trivia and Chili Cookoff. It's a fundraiser for a 4-year-old who is valiantly battling an inoperable brain tumor.  Stick around (or come back later) that night for live music from Nathan Racschkow, playing a great mix that includes rock and country. Costumes encouraged.

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Friends enjoying a Halloween party at a bar look to camera
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Hooligan's

Downtown's favorite party bar is hosting its 18th annual Halloween Bash on Saturday night, with $250 cash for best-dressed female, male and group costumes. No cover and DJ Knox spins the tunes.

Daisy Duke's

If Hooligan's isn't your scene, you can always pop across the street to Daisy Duke's for their annual Halloween party/costume Contest.

Levity Bar and Casino

Eat, Drink and Be Scary is the theme Friday night at Levity, with live music from Buster Sparks. The best costume wins $250, second place takes home $150.

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Manny's Sports Bar and Casino

I like Manny's because there is plenty of room to spread out and have fun. They're hosting their OG Slasher Halloween Bash on Saturday night with cash prizes, "BOO-zy" drink specials, and a DJ.

Powder Horn Lounge

The Powder Horn kicks off "HalloWeekend" on Friday night with $3 Bud Light seltzers, shot specials, and karaoke starting at 9 pm.

Did we miss any epic Halloween 21+ parties? Shoot me an email and I'll add it to the list. Michael.Foth@TownSquareMedia.com

LOOK: How Halloween has changed in the past 100 years

Stacker compiled a list of ways that Halloween has changed over the last 100 years, from how we celebrate it on the day to the costumes we wear trick-or-treating. We’ve included events, inventions, and trends that changed the ways that Halloween was celebrated over time. Many of these traditions were phased out over time. But just like fake blood in a carpet, every bit of Halloween’s history left an impression we can see traces of today.

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