Escape the usual trick-or-treat routine or costume-kegger weekend by hitting up some alternative amusement in the spirit of spook. Below, a few choice monster moments for kids and adults alike this Halloween. FOR THE ATHLETES Denver Gorilla Run Run, walk, jog, skateboard, unicycle, or skip to conquer this 5.6K route through Denver. (We highly recommend gorilla-style: on all fours.) There are no rules to this charity run, save one: Everyone wears a full gorilla suit, provided upon entry. Proceeds support the Mountain Gorilla Conservation Fund. Bonus: You keep the gorilla garb. Sat 11 a.m. Start and finish at the Wynkoop Brewing Company, 1634 18th St. $45$75/kids, $75$150/adults. For more information or to register, visit www.denvergorillarun.com. Scream Scram 5K and 100-meter Spooky Sneak Race in costume to raise money for the National Multiple Sclerosis Society. Fri 5/6 p.m. Washington Park (southeast corner). $15/kids, $23$27/adults. For more information or to register, visit www.screamagency.com/scram.php. FOR THE FRIGHT-FREAKS The Reinke Brothers Haunted Mansion Startling special effects and Disney-caliber animatronics make this haunted mansion anything but a joy ride. Come only if you can handle the tricks and treats of seasoned professionals. Through Tuesday, times vary. 5663 S. Prince St., Littleton. $12. For more information, call 303-795-5006 or visit www.reinkebrothers.com/haunted.html. Frightmare Lot Back-to-back scares will have you bumping into mine shaft walls, tripping on fences and headed for an escape from this outdoor, open-space ghoul fest. Through Tuesday, times vary. 108th Ave. and Old Wadsworth Blvd., Westminster. $13.50$20. For more information, call 303-439-7391 or visit www.haunteddenver.com/attractions/frightmare.html. FOR THE HOUNDS "Howl"oween Bring your pup to this wine and cheese (and candy) party at the Omni Interlocken and make sure he/she is dressed to impress. The pooch with the best costume wins a weekend at the Omni Interlocken Resort, complete with dinner plus your choice of golf or spa packages. All proceeds will be donated to the Humane Society of Boulder Valley. Sun 46 p.m. Omni Interlocken Resort Golf Clubhouse, 800 Eldorado Blvd. $25/couple, $15/individual. For more information, visit www.boulderhumane.org. Wags To Whiskers Animal Wellness Fair Make sure Rufus is as happy and healthy as possible with a low-cost wellness exam and blood profile at this pet extravaganza by the Colorado Humane Society. Then treat him to some Halloween fun at the pet costume competition and Pets & Persons Look-Alike Contest. Trick-or-treat for pet goodies at more than 80 exhibitors, watch the adoption parade for furry-friend potentials, and snag an autograph from a Broncos cheerleader to boot. Sat 9 a.m.4 p.m. Denver Merchandise Mart, 451 E. 58th Ave. Free (donations appreciated). For more information, visit www.coloradohumane.org. FOR THE PARTIERS Cabaret Diosa's Willy Juanka and the Cha Cha Factory Colorado's favorite mambo act makes their last hurrah (exiting the biz after 11 years) a dazzling Halloween show with chainsaw jugglers, 20-foot dancing skeletons, rapping munchkins, and more. Talented? Twisted? You make the call. Boulder Theater, 2030 14th St. ThuFri 9 p.m. $30. For more information, call 303-786-7030 or visit www.bouldertheater.com. Mustache4cash Halloween Bash For a month, Mustache4cash participants have been collecting pledges by growing mustaches to raise money for the Byrne Foundation, a scholarship/mentor program for at-risk Denver youth. Celebrate their success (and the return of the razor) at this finale bash featuring the Mustachelor Auction, the 'Stachie Awards, a costume contest, door prizes, and more. Sat 7:30 p.m. $1525 (21+). BlueBird Theater, 3317 E. Colfax Ave. For more information or tickets, visit www.mustache4cash.org.