Black Friday 2018

Black Friday 2018 was a Black Friday sale on Roblox that started on November 23, 2018, and ended on November 27, 2018. An abundance of hats, hairs, other accessories and bundles in the avatar shop came out along with the majority of the items having their current Robux prices to be discounted for a specific amount throughout the sale while several items were substantially or individually released in so-called 'waves' each subsequent hour. Not many off-sale items went limited; instead, they were brought back on sale, while a lot of limited unique items were released.

Seven limited unique items came out, 18 timed items were featured, 31 items were discounted, seven bundles were released, and only one item went limited. An average of 20 items came out each day.

Wave 1
The sale kicks off with the release of two cheap accessories:
 * Split Equinox - 10 Robux (four-hour timer)
 * Baseball Ushanka - 10 Robux (four-hour timer)

Wave 2
Two cheap hairs were released:
 * Crimson Dragon Empress Hair- two Robux (three-hour timer)
 * Midnight Snowflake Hair - two Robux (three-hour timer)

Wave 3
A new limited unique Noob Attack was released:
 * Noob Attack: Laser Scythe Scuffle - Formerly 75 Robux (75,000 stock)

Wave 4
Two new accessories and a face were released:
 * Earth Dragon Tail - 250 Robux
 * 8-Bit Heart Face - 100 Robux (24-hour timer)
 * Pirate Top Hat - 300 Robux

Wave 5
A waist accessory was released:
 * Phoenix Tail - 1,000 Robux

Wave 6
A new hair accessory was released:
 * Burning Hair for Fiery People - 150 Robux

Wave 7
Two pairs of wings went on sale, and a hair accessory was brought back:
 * Majestic Ice Wings - 750 Robux → 450 Robux (40% off)
 * Wings of Fire - 750 Robux → 450 Robux (40% off)
 * Frozen Hair for Cold People - 150 Robux

Wave 8
Three Rthro bundles were released: A hair accessory was brought back on sale and three hats were discounted: Three existing Rthro bundles were discounted:
 * Kon the Crusher - 500 Robux
 * Mr. Skeleton - 300 Robux
 * Icicle Fairy - 250 Robux
 * Midnight Motor Magnifique - 500 Robux
 * Glorious Unicorn Headpiece - 150 Robux → 50 Robux (66% off)
 * Adurite Bucket - 2,000 Robux → 1,000 Robux (50% off)
 * Pirate Captain's Hat - 2,000 Robux → 1,000 Robux (50% off)
 * Wyldfire Fairy - 700 Robux → 200 Robux (64% off)
 * Barb the Barbarian - 800 Robux → 400 Robux (50% off)
 * Pumpkin Reaper - 250 Robux → 125 Robux (50% off)

Wave 9
Three animation packs were discounted:
 * Ninja Animation Pack - 750 Robux → 300 Robux (60% off)
 * Pirate Animation Pack  - 750 Robux → 300 Robux (60% off)
 * Levitation Animation Pack - 1,000 Robux → 500 Robux (50% off)

Wave 1
Two new Rthro bundles were released:
 * InsectZoids: Dr. Mantis - 250 Robux
 * InsectZoids: Fire Ant Champion - 250 Robux

Wave 2
Two Rthro bundles were discounted. Two highly demanded classics were brought back onsale along with three BIG accessories: A limited unique Immortal Sword was released:
 * Cats...IN SPACE: Sergeant Tabbs - 600 Robux → 250 Robux (60% off)
 * Bounty Hunter L-23 - 800 Robux → 400 Robux (50% off)
 * BiggerHead - 1,000 Robux (five-hour timer)
 * Bighead - 250 Robux (5-hour timer)
 * BIG: Bighead Santa - 250 Robux (five-hour timer)
 * BIG: Beautiful Hair for Bighead People - 250 Robux (5-hour timer)
 * BIG: Galaxy Girl - 250 Robux (five-hour timer)
 * Onyx Immortal Sword - Formerly 25,000 Robux (100 stock)

Wave 3
A new hair accessory was released: Three accessories were discounted:
 * Bluesteel Mohawk - 750 Robux (24-hour timer)
 * Blue 8-Bit Headphones - 800 Robux → 300 Robux (62.5% off)
 * Xtreme Rainbow Hair - 100 Robux → 50 Robux (50% off)
 * Holiday Crown - 50 Robux → 25 Robux (50% off)

Wave 4
A pair of Sparkle Time-textured Shutter Shades were released:
 * Blue Sparkle Time Shutter Shades - 5,000 Robux (6-hour timer)

Wave 5
Two new hats were released: A classic hat and bundle were brought back on sale: Two bundles were discounted:
 * Silver Cat Warrior Helmet - 125 Robux
 * Gold Cat Warrior Helmet - 250 Robux
 * The Dark Reaper - 500 Robux (two-hour timer)
 * Nefarious Red Wizard - 800 Robux
 * Skeleton - 500 Robux → 300 Robux (40% off)
 * Penguin  - 300 Robux → 200 Robux (33% off)

Wave 1
Two new Rthro bundles were released:
 * Warhound Shadow Operative - 200 Robux
 * Cratus the Warlord - 300 Robux

Wave 2
A pair of wings and two accessories were released: A limited unique face was released:
 * Black Rose Headphones - 1,000 Robux
 * Red Rose Headphones - 800 Robux
 * Wood and Metal Steampunk Wings - 1,000 Robux
 * Snow Queen Smile - Formerly 100 Robux (25,000 stock)

Wave 3
A limited unique pair of WC Ultimates headphones were released:
 * WC Ultimates - Garnet Gratitude - Formerly 20,000 Robux (100 stock)

Wave 4
A new gear was released, and an existing one discounted:
 * Maaus, the Battle Lion - 1,200 Robux
 * Magical Unicorn - 2,000 Robux → 1,200 Robux (40% off)

Wave 5
Three items had their price cut: A well-favored hat that was previously offsale went limited: An Rthro bundle had its price also discounted:
 * Guardian of the Light Cape - 1,000 Robux → 500 Robux (50% off)
 * Heroic Golden Wings -  1,000 Robux → 600 Robux (40% off)
 * Korblox Mage Staff - 1,000 Robux → 750 Robux (25% off)
 * Frozen Horns of the Frigid Planes - Formerly 5,000 Robux
 * Fearless Ocean Diver - 600 Robux → 300 Robux (50% off)

Wave 6
A neck accessory was brought back on sale and an item was discounted:
 * 8-Bit Lifebar - 1000 Robux → 250 Robux (75% off)
 * Goldlika: Legend - 15,000 Robux (two-hour timer)

Wave 1
Day 4 began with the release of two back accessories:
 * Red 8-Bit Backpack - 250 Robux
 * Glorious Moth Wings - 100 Robux

Wave 2
A new face accessory was released:
 * Radioactive Beast Mode Bandana - 10 Robux (four-hour timer)

Wave 3
A gear was released:
 * Twin Space Pistols - 500 Robux

Wave 4
Four accessories had their price cut:
 * Turtle Back Shell - 500 Robux → 25 Robux (95% off)
 * Business Cat -  200 Robux → 50 Robux (75% off)
 * Purple Shoulder Dragon - 150 Robux → 75 Robux (50% off)
 * Shoulder Bear - 300 Robux → 150 Robux (50% off)

Wave 5
Three limited unique faces were released: A gear, a hat, and a bundle were released: To end the sale, three pairs of shades had their price cut:
 * So Super Excited - Purple - Formerly 250 Robux (1,000 stock)
 * So Super Excited - Blue - Formerly 100 Robux (2,500 Stock)
 * So Super Excited - Pink - Formerly 25 Robux (5,000 Stock)
 * Gold Rose Headphones - 1,200 Robux (24-hour timer)
 * Lightning Guard General - 500 Robux (24-hour timer)
 * Phoenix Feather Burning Sword - 100 Robux (24-hour timer)
 * Bling Shades - 1,500 Robux → 750 Robux (50% off)
 * Winged Shades of Aqua - 1,000 Robux → 350 Robux (65% off)
 * Sonic Shades - 500 Robux → 300 Robux (40% off)

Criticism
Many people had mixed reviews about this event since many items eventually went back onsale after the event, such as the Split Equinox. Some had to miss out on certain items due to inconvenient timers as well.

Trivia

 * When the BiggerHead came back on-sale during Day 2, the official Roblox Twitter account linked to a decal of the BiggerHead instead of the actual catalog item. About an hour later, the tweet was deleted and was reposted with the correct link.

Gallery
See here for images related to Black Friday 2018.