The Gremlin is a Mythical pet in Grow a Garden, the Roblox farming game where you grow crops and collect pets with special abilities. You get it from Trick-or-Treating during the Halloween event, where each knock costs Candy Corn and the Gremlin is one of the random house rewards. Its ability, Machine Mischief, increases your odds of rolling rarer results from the Pet Mutation Machine.
| Detail | Gremlin |
|---|---|
| Rarity | Mythical |
| Where to get it | Trick-or-Treating during the Halloween event |
| Cost per knock | 10 Candy Corn for the first knock after a reset; later knocks cost more |
| Ability | Machine Mischief |
| Ability effect | Increases your odds of rolling rarer Pet Mutation Machine results |
How to Get the Gremlin Pet in Grow a Garden
Getting a Gremlin takes three steps, and the last one depends on luck.
- Gather Candy Corn, the currency Trick-or-Treating uses.
- Head to Trick-or-Treating during the Halloween event and knock on the Trick-or-Treat house.
- Check the reward. Each knock can give a treat or a trick, and the Gremlin is one of the possible rewards.
Paying for a knock doesn't guarantee a Gremlin, because house rewards are random. Expect several knocks without one, and budget your Candy Corn with that in mind.

Where to Get Candy Corn for Trick-or-Treating
Trick-or-Treating runs on Candy Corn, so your supply decides how many knocks you can make. One way to build it up is selling Halloween fruit at Sinister Sales.
Each knock costs more than the one before it. The first knock after a reset costs 10 Candy Corn, and the price goes back to 10 every eight hours. A long session in one sitting gets expensive quickly, so spacing your knocks out and letting the reset run is the practical way to keep costs down.
What the Gremlin's Machine Mischief Ability Does
The Pet Mutation Machine gives your pets mutations, and the Gremlin's Machine Mischief ability pushes those rolls toward rarer results. The ability only works while the Gremlin is in an active pet slot. A Gremlin sitting in storage does nothing for the machine.

Machine Mischief doesn't choose the outcome. It improves your odds, so a roll can still land on a more common mutation.
Whether the Gremlin is worth chasing depends on how often you use the machine. The ability matters only there, so if you rarely mutate pets, it won't add much. If you mutate pets regularly, it's a useful pet to keep equipped.









