Monsters, Magic & Martians – A Halloween Costume Party at The B.O.B. · Grand Rapids · Oct 31, 2026

Friday, October 30, 8pm–1am | Saturday, October 31, 8pm–1am The B.O.B. present Monsters, Magic & Martians – A Halloweekend Costume Party at The B.O.B., because one night of Halloween Horror just isn’t enough! Join us Friday, October 30, and Saturday, October 31 (or both!) as each floor transforms into immersive scenes inspired by Fairytales, Myths, Sci-fi, and more. Enjoy themed drinks, live entertainment across five venues, access to Eve Nightclub, and a photo booth to capture your killer look. Both nights feature massive Costume Contests–if you don’t win Friday, come back Saturday for another shot! Tickets are on sale now.  General Admission Tickets (Oct 30) $35 each or (Oct 31) $45 each VIP Pre-Party Tickets (Oct 30) $45 each or (Oct 31) $55 each (includes passed appetizers & welcome cocktail) VIP Weekend Pass (Oct 30 or Oct 31) $70 each (includes passed appetizers & welcome cocktail) Door Tickets are $50 each and will be available each night beginning at 9pm with limited availability.  Doors open at 7pm on both nights for VIP Pre-Party ticket holders. Doors open at 8pm on both nights for General Admission ticket holders. 5 floors of live entertainment. Chilling drink features. Photo booth.   Eve opens at 9pm with no additional cover required (subject to max capacity).   Tickets are nonrefundable and do not include food or drink. For security purposes, all ticket holders must be inside the building by 10pm to ensure party attendance. Hollywood Horror Experiences Star Wars Cantina @ BOB's Brewery Game Room Lower Level Haunted Forest @ Main Lobby 1st Floor Harry Potter @ BOB's Brewery 1st Floor Shrek's Swamp @ HOME 1st Floor The Odysssey & Greek Mythology @ Bobarino's 2nd Floor Game of Thrones @ Ashton 3rd Floor Martians & Cyberpunk @ Eve 4th Floor Live Entertainment 10/30 Brewery Game Room (9pm-1am) - Karaoke H.O.M.E. (9pm-1am) - Sophia McIntosh & The Sages Bobarino's (8pm-1am) - DJ RIINK  Ashton (9pm-1am) - DJ Ryan Henry Eve (9pm-1am) - DJ Keller Shaw Live Entertainment 10/31 Brewery Game Room (8pm-1am) - Karaoke H.O.M.E. (8pm-1am) - DJ Matt B Bobarino's (8pm-1am) - DJ RIINK Ashton (8pm-1am) - DJ Ryan Henry Eve (9pm-1am) - DJ Van Hekken Make the most of your Eve nightclub experience by purchasing a VIP bottle service booth! For more info and to make your bottle service reservations, email vip@gilmorec.com. Admission to the building must be purchased separately from your bottle service reservations.  Costume Contest (both nights) The winners of Friday's Contest (Oct 30) may not enter Saturday's Contest (Oct 31) 1st Place Prize: $500 check on each night 2nd Place Prize: $250 check on each night Winners are based on the best overall costume on each night Secret judges will determine the top 5 on each night Public applause vote will determine the top 2 on each night Public vote to occur in HOME on each night at 11:30pm Costume Contest Rules: Guests may wear costumes of any theme.   No real, fake, toy or prop weapons of any kind will be permitted inside the building or checked at coat check.   Last years 1st and 2nd place winners are not eligible.  No heavy layering of clothing that allows concealment.  Masks or face coverings must be removable so venue can properly check identification.  Face painting or alterations must be such that your face is still recognizable enough for the venue to properly check identification.  Any costume item on the head must be removed during security check. Rules & Disclaimers 21+ only.  Tickets are nonrefundable and do not include food or drink. Tickets are non-transferrable, Name on the ticket must match the name on the ID.  All Ticket holders must be inside the building by 10pm to ensure entry.  Re-entry will not be allowed for the safety of our guests.  All ticket holders will have priority entry but must be in the building by 10pm. If you attempt to enter after 10pm, you are subject to a wait in line.   Even if you have a pre-sale ticket, you may have to wait in a short line, as we do our best to get thousands of people in the building. You are in an express line if you have a pre-sale ticket with us.   All guests will need to show valid ID. No minors will be allowed entry.   All guests will be wanded by security.   Nothing resembling a weapon will be admitted or checked into coat check–this includes real weapons, toys weapons, fake weapons, replicas, or props designed to look like a weapon.   Any masks or face covering must be removable so venue can properly check identification.  Face painting or alterations must be such that your face is still recognizable enough for the venue to properly check identification.  Any costume item on the head must be removed during security check.  Smoking is allowed outside on the 2nd floor Sky Deck only.   No outside food or drinks are allowed.   No drugs, liquids, or powders are allowed.   No drones, go pros, or other professional recording devices are allowed.