Put on your favorite costume and go bar-hopping downtown this Halloween—and be sure to bring your I.D. The Acme Hospitality Group is hosting themed parties at all five of its downtown bars with uniquely spooky cocktails for $4, costume contests and treats from 7 p.m. to 1:30 a.m. Easy gaming: The bars are within a few square blocks walking distance. Safety tip: Assign a designated driver or plan your transportation to and from in advance.

Where to Crawl:

Sixth Street Tavern: The party never dies at the "zombie prom" with an Endless Love Potion. 630 W. 6th St., Los Angeles

Library Bar: Villains abound, and “blood is the new black” with a Skullsplitter cocktail. 630 W. 6th St., Los Angeles

Spring St. Bar: It’s the "Day of the Dead" with the Re-Animator Elixir. 626 S. Spring St., Los Angeles

King Eddy Saloon: The Warriors are fighting with a Coney Island Punch. 131 E. 5th St., Los Angeles

Beelman’s Pub: Be part of an exotic and mysterious “sideshow” with a Freak Street Fizz. 600 S. Spring St,. Los Angeles