The Haunted Fuse is the Halloween fusion machine in Steal a Brainrot, added with Update 69 and sitting in the middle of the map. You feed it four Brainrots, and it rolls you a single new unit, ranging from a common filler all the way up to the Secret-tier Phoenix at $425 million per second. It works like the regular Fuse Machine, but the reward pool is stocked with spooky, limited-time characters.
Quick answer: Carry four Brainrots to the Haunted Fuse’s Collect Zone in the center of the map, submit all four, confirm the fusion with the Cash button, then return and interact with the machine to claim your fused unit.
How to use the Haunted Fuse
The Haunted Fuse is a personal structure. While a fusion is running, no other player can steal the unit out of the machine, so your inputs are safe until the result is ready.
How rarity inputs change your odds
Results are RNG-based, but what you put in shifts the odds. Depositing higher-rarity Brainrots raises your chance of pulling a rare unit, potentially from the Brainrot God or Secret tiers. Feeding in Secret-rarity Brainrots specifically pushes your odds toward receiving another Secret.
Plant Bros and Phoenix are the rarest payouts here. Because of that, they show up in the Possible Fusions list only on an extremely low chance, even when you load the machine with strong units.
Rarity alone does not mean the result beats your inputs. Check the Possible Fusions preview and avoid feeding a unit that already earns more than the Brainrots you are likely to get back.
Every Haunted Fuse Brainrot and income rate
The machine mixes older units with the new Halloween characters introduced in Update 69. Here is the full reward pool with each unit’s rarity and base earnings.
| Brainrot | Rarity | Income rate |
|---|---|---|
| Tartaragno | Common | $13/s |
| Pinealotto Fruttarino | Rare | $75/s |
| Mummio Rappitto | Epic | $325/s |
| Quackula | Legendary | $1,200/s |
| Buho de Fuego | Legendary | $1,800/s |
| Magi Ribbitini | Mythic | $11,500/s |
| Frostino Vampiro | Brainrot God | $17,500/s |
| Vampi Ribbitin | Brainrot God | $185,000/s |
| Mummelo Bandello | Brainrot God | $285,000/s |
| Mortaruga | Brainrot God | $324,000/s |
| Los Treaters | Secret | $1,200,000/s |
| Fangaro Lupino | Secret | $7,200,000/s |
| Oni Oni Panda | Secret | $27,000,000/s |
| Sammyni Spookyni | Secret | $80,000,000/s |
| Plant Bros | Secret | $300,000,000/s |
| Phoenix | Secret | $425,000,000/s |
Phoenix is the top earner in the machine at $425 million per second, with Plant Bros just behind it. Both are the most coveted results, and both are the hardest to land.
Fuse Luck and Admin Abuse
Fuse Luck improves your chances of pulling the rarest units from the Haunted Fuse. You can buy it as a gamepass for 499 Robux, which boosts your odds for 15 minutes, and there is no limit on how many times you can purchase it.
The same luck boost is handed out for free during Admin Abuse events. If you are chasing Plant Bros or Phoenix, hold onto your Secret and OG Brainrots until developers trigger an admin event, then load the machine once Fuse Luck is active to give those rare rewards a better chance of appearing.
The Haunted Fuse is live now, so you can start feeding units into it on any server, from beginner lobbies to high-level ones. Decide what you are willing to risk before you press Cash, and lean on the Possible Fusions preview rather than rarity labels when you pick your four inputs.
