Sora Tanka
I'm a lifelong otaku who covers rising Roblox games, overlooked anime classics and the internet trends worth your time. When I'm not chasing the next niche simulator, I'm hunting rare retro VHS tapes. Find me on Instagram, Facebook, X and LinkedIn.
Published: October 27, 2026 | 8 min read | Last updated: October 27, 2026
Six days into Roblox's Halloween event, the monster stalking the maze is a cute little patient that wants to eat you. That's the Mimic from Animal Hospital, and its arrival on Day 6 of The Hollow unlocked a brand new free reward: the Mimic Hoodie. If you've been bouncing between portals wondering which quest actually pays out the hoodie, you're not alone. There are two different Day 6 quests, two different games with "Mimic" in their names, and even a 2019 catalog item also called Mimic Hoodie cluttering your search results. This guide walks you through the exact Animal Hospital quest route, from the Hazmat NPC to the 3x3 slide puzzle. It also shows you how to claim the hoodie in the hub and clears up every naming mix up along the way. Grab your vacuum. We're going slime hunting.
⚡ Quick Answer
To get the Mimic Hoodie, enter The Hollow, take the Animal Hospital portal and start its Halloween quest. On in-game Day 2, talk to the Hazmat NPC, vacuum pink slime to collect photos, and solve the 3x3 slide puzzle by the counter. Talk to the Hazmat NPC again on Day 3, then claim the hoodie in the hub.
What Is the Mimic Hoodie in Roblox The Hollow?
The Mimic Hoodie is a free avatar item from The Hollow, Roblox's platform wide Halloween survival event for 2026. The event adds one horror icon per night for nine nights. Day 6 belongs to the Mimic, the disguised anomaly from Animal Hospital that checks in looking like a normal patient and then turns into a mouth with legs.
Each of the nine headline games, called the Nightly Haunts, has its own event quest that you reach through a portal in The Hollow's hub. Finish Animal Hospital's quest and the Mimic Hoodie is yours. Day 5's equivalent reward, for example, was the Hiachi Grin Mask from The Mimic. Clearing these portal quests also grants a badge and a small stack of Hollow Tickets, which you can spend in the event shop.
Which Day 6 Quest Gives the Mimic Hoodie?
This is where most players trip. Day 6 actually has two separate tasks, and only one of them gives the hoodie. On top of that, a decade of Roblox history has left a name clash you need to know about.
| What It Is | Where You Do It | Reward |
|---|---|---|
| Animal Hospital portal quest | Inside Animal Hospital, reached from The Hollow hub | Mimic Hoodie, badge, Hollow Tickets |
| Floor 6 hub quest | The Animal Hospital themed area on Floor 6 of The Hollow | Little Plus-tergeist badge and item |
| The 2019 "Mimic Hoodie" | Avatar Marketplace | Unrelated older UGC neck accessory, 100 Robux, not tradable |
One more trap: the Mimic in this event comes from Animal Hospital, not from the horror game The Mimic. The Mimic's monster is Hiachi, and it owned Day 5. If a guide tells you to farm The Mimic for this hoodie, close the tab.
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How to Get the Mimic Hoodie: Step by Step Animal Hospital Quest
What You Need Before You Start
- A Roblox account eligible for The Hollow (the event targets players aged 9 and up in most regions).
- Time: budget about 20 minutes for a first clear, less on a second attempt.
- Difficulty: easy to medium. The puzzle is simple, but the shifts keep you busy.
- Optional: a friend to treat patients while you hunt slime.
The Full Quest Route
- Enter The Hollow: Launch the event experience and head to the ring of game portals in the hub. Pick the Animal Hospital portal and confirm the teleport.
- Start the Halloween quest mode: Once you load into Animal Hospital, start a run in its special Hollow event mode rather than a regular match.
- Play through to in-game Day 2: Treat patients and survive the first day normally. The quest doesn't begin until Day 2.
- Talk to the Hazmat NPC: On Day 2, find the worker in the hazmat suit and talk to them. They hand you a vacuum cleaner.
- Vacuum the pink slime: Sweep the hospital for pink slime puddles scattered across the map. Vacuuming them uncovers photos, so collect every one you find.
- Solve the 3x3 slide puzzle: Go to the puzzle mounted on the wall in front of the reception counter. Slide the tiles until the picture lines up.
- Survive to Day 3 and report back: Keep the hospital running until Day 3, then talk to the Hazmat NPC again to wrap up the quest and earn the badge.
- Claim the Mimic Hoodie in the hub: Return to The Hollow and look for the hoodie on its display near the Animal Hospital portal. Interact with it to add the item to your inventory.
💡 Pro Tip: Slide puzzles get much easier if you finish the top row first, then the left column, and only then fiddle with the last four tiles. Trying to fix everything at once is how you end up shuffling for five minutes while a Mimic chews on your patients.
⚠️ Important: Finishing the quest is not the same as owning the hoodie. If you log off straight from Animal Hospital, the item stays unclaimed. Always go back to the hub and interact with the display.
How Do You Survive the Mimic During the Quest?
You're still running a hospital while you vacuum, which means the actual Mimic can show up mid quest. Knowing its habits saves runs.
- Listen for the line. A Mimic about to turn says "I'm hungry…" and growls. That's your cue to drop the vacuum.
- Watch posture. A hunched, poor posture idle animation is the most reliable early tell.
- One shot does it. A single gun shot stops a Mimic, and the taser works too. Aim carefully, because hitting the real patient counts as a patient death.
- You're faster. Mimics move slower than players, so sprinting to reception for the taser is a valid plan.
- Shifts won't end with a Mimic inside, even a disguised one. If a day refuses to finish, sweep the rooms.
📊 Key Stat: The Hollow packs 9 monsters into 9 nights and draws on dozens of participating games. Every reward, including the Mimic Hoodie, stays claimable until noon PT on November 2, 2026.
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"As players complete quests, they'll earn exclusive UGC and rewards."
My Run Through the Animal Hospital Quest
I'll be honest: my first attempt was a disaster, and it wasn't the Mimic's fault. I got so excited about the vacuum that I abandoned reception entirely, and by the time I'd cleared half the slime, the waiting room had turned into a buffet. What finally worked was splitting the job. I treated patients until each room was stable, then did quick vacuum laps between check ins. The slide puzzle took me two tries because I kept solving the bottom row first, which is exactly backwards. The funniest moment? Spotting a patient doing the hunched posture animation right as I walked past with my vacuum, and realizing I was now the hazmat guy in somebody else's horror movie.
What Mistakes Stop You From Getting the Mimic Hoodie?
- Looking for the Hazmat NPC on Day 1. They're not part of the quest until Day 2. Just play the shift.
- Playing a normal Animal Hospital match. The quest only runs in the Hollow event mode you enter from the portal.
- Skipping slime puddles. Missed photos can leave the puzzle step incomplete. Check corners, treatment rooms and the waiting area.
- Forgetting the Day 3 talk. Solving the puzzle feels like the finish line, but the Hazmat NPC conversation on Day 3 seals it.
- Doing only the Floor 6 cauldron puzzle. That earns Little Plus-tergeist, not the hoodie.
- Buying the old catalog hoodie. The 2019 item with the same name is a different product.
Is the Mimic Hoodie Worth the Grind?
For a free item, absolutely. Here's the angle most guides miss: Day 6 is the most efficient day of the whole event if you plan it. The Animal Hospital portal quest and the Floor 6 hub quest share a theme, so you can knock out both in one sitting. Ride the elevator to Floor 6, mix the cauldron ingredients by reading the name and color on each one, and carry the key down to the lobby. Then hop through the portal for the hoodie run. That's two badges, two items and a pile of Hollow Tickets in well under an hour.
Roblox Plus subscribers get a third bonus on Day 6, since the Spectral Skull of Nevermoor joins the subscriber items around this point. And if you're behind on earlier floors, every day stays open until the deadline. Our Day 2 free UGC items and badges guide is a good place to start catching up.
Frequently Asked Questions
Is the Mimic Hoodie free in Roblox The Hollow?
Yes. The Mimic Hoodie is a free event reward. You earn it by completing the Animal Hospital quest inside The Hollow, then claiming it in the event hub. Some Hollow rewards can also be bought with Hollow Tickets from partner game quests, but you never need to spend Robux on this hoodie.
Is the event Mimic Hoodie the same as the one in the catalog?
No. A different Mimic Hoodie, a neck accessory by the UGC creator DieSoft, first went on sale in October 2019 and is listed at 100 Robux. The Hollow version is a separate 2026 event reward unlocked through the Animal Hospital quest, so don't buy the old one by mistake.
Does the Animal Hospital quest give Little Plus-tergeist?
No. Little Plus-tergeist is the Day 6 hub floor reward. You get it by riding to Floor 6 inside The Hollow, solving the cauldron puzzle and carrying the key back to the lobby. The Mimic Hoodie comes from the separate Animal Hospital portal quest, so you need to complete both.
When does The Hollow event end?
The Hollow runs until November 2, 2026, with rewards claimable until noon Pacific Time that day. A live finale starts on the morning of October 31. Daily floors and partner quests stay open after their release day, so you can still finish Day 6 late, just not after the deadline.
Can you do the Animal Hospital Hollow quest solo?
The quest steps don't require a second player, so solo runs work. A friend still makes it much smoother. One player vacuums slime and hunts photos while the other treats patients. Mimics drain the sanity of whoever they attack, so backup with a taser keeps the run under control.
Why didn't I get the Mimic Hoodie after finishing the quest?
Most missing rewards come from skipping the claim step. Finishing the quest gives you the badge, but the hoodie has to be claimed at its display in The Hollow hub. Rejoin the hub, check near the Animal Hospital portal, and if it still won't appear, try a fresh server.
Final Thoughts on the Mimic Hoodie
The Mimic Hoodie is one of the easier freebies in The Hollow once you know which door to walk through. Take the Animal Hospital portal, survive to Day 2 and grab the vacuum from the Hazmat NPC. Then clean up the pink slime, beat the slide puzzle and check back in on Day 3. Claim it in the hub, then pop up to Floor 6 for Little Plus-tergeist while you're there. Just keep one ear open for "I'm hungry…" because the Mimic definitely isn't on a diet. You have until noon PT on November 2, so go get dressed like the monster before the monster gets you.
📚 Sources & References
- The Hollow: New Platform Wide Survival Event for Halloween, Roblox Newsroom, October 21, 2026
- The Hollow, Roblox Experience Page, October 2026
- Animal Hospital, Roblox Experience Page
- Roblox The Hollow Items, Games, and Event Details, GamesRadar+, October 23, 2026
- The Hollow, NamuWiki, October 2026
- Mimic, Animal Hospital Wiki, Fandom
- How to Survive the Mimic in Animal Hospital Roblox, AnimalHospitalRoblox.net
- Roblox The Hollow: The Mimic Badge and Hiachi Grin Mask Guide, TechWiser, October 2026
- Mimic Hoodie (2019 UGC accessory), Roblox Marketplace
