First confirm the Fuse Machine is still present in your server. Complete Rebirth 1, then look left of the Phoenix near Ride Pet with Friends. Load four spare pets of Legendary rarity or higher, read the possible results, Cash cost, timer, Mutations and Traits in the preview, then Fuse and return when the timer ends.
Availability boundary: the official FUSE MACHINE event ran Oct 3–4 and is no longer returned by the official event feed on Oct 5. The machine was described as limited-time, so use the live server—not this page—to confirm that it is currently available.
Why the Fuse Machine may be invisible
No Rebirth 1Current guides report that the machine does not appear until the first rebirth is complete.
Rebirth finishedGo to spawn and look left of the Phoenix beside Ride Pet with Friends.
Still missingRejoin a current server and check event availability before assuming your save is broken.
Current guide sources report that Rebirth 1 needs $1M Cash and one Horse, with Horse obtained from the Glass Egg. Read the live rebirth panel before resetting because requirements and reset effects can change.
Before you place a pet in a tube
One fusion produces one Fused Pet. Treat every tube as a permanent sacrifice and back out if any input is a keeper.
Fuse one set of pets
- Fill the four tubes.Select one unequipped eligible spare pet at a time and place one in each tube.
- Open the center console.Interact after all four slots are filled.
- Read the whole preview.Check the four inputs, possible Fused Pets, Cash cost, completion timer and possible Mutations or Traits.
- Confirm only if the trade is acceptable.Press Fuse after you accept losing every input and paying the displayed price.
- Return and collect.The timer continues offline in current reports. Come back after the live timer ends and collect the result.
What the preview can—and cannot—tell you
Possible results shownUse the live result pool for this exact combination instead of a copied recipe list.
Cash cost shownPay the displayed amount; this guide does not hard-code one universal fusion price.
Mutations or Traits shownUse them as possibilities. Mutation carry-over is reported, not guaranteed by a published rate.
Timer shownFollow the machine's current timer. You do not need to remain online while it runs.
Fast troubleshooting
A pet is rejectedRecheck that it is unequipped and Legendary rarity or higher.
The result pool looks poorBack out before confirming and replace inputs; do not gamble a needed pet.
The machine vanishedThe event was limited-time. Check a current server and the official event panel.
You expected a mutationCarry-over odds are not verified. Judge the actual collected pet, not an assumed guarantee.
Source boundary: Roblox's event history establishes the FUSE MACHINE name and limited-time window. The unlock, location, four-input procedure, preview fields, offline timer and carry-over possibility are community-guide observations dated Oct 3–5. Exact recipes, output odds, individual Fused Pet stats and mutation-transfer rates remain unverified.