Grey Mouse and Brown Mouse are two of the most accessible Mythical pets in Grow a Garden Roblox.
Both were released in the Blood Moon Update (Patch 1.06.0) on May 17, 2025, and are known for their EXP-boosting traits and mobility bonuses.
This guide covers how to get each pet, their differences, and why they’re useful for both beginners and experienced players.
Grey Mouse Overview
- Tier: Mythical
- Hatch Chance: 35.71% (highest of all Mythicals)
- Obtained From: Mythical Egg
- Hunger: 5,500,000 (extremely high)
- Trait 1: Grants 500 EXP every 10 minutes
- Trait 2: +10% movement speed
Grey Mouse is ideal for players who want to move quickly between crops and shops.
Its speed buff is particularly helpful in reducing downtime when farming or exploring the map.
While the EXP gain is moderate, its high hunger cost makes it more demanding to keep active.
Brown Mouse Overview
- Tier: Mythical
- Hatch Chance: 26.79%
- Obtained From: Mythical Egg
- Hunger: 15,000 (very manageable)
- Trait 1: Grants 750 EXP every 8 minutes
- Trait 2: +10% jump height
Brown Mouse is a more balanced pet, especially for those aiming to level up faster.
The passive EXP gain is higher than Grey Mouse, and its mobility boost helps you reach elevated platforms or structures more easily.
It’s also much easier to feed and maintain, thanks to its low hunger stat.
How to Get Grey Mouse and Brown Mouse
Both of these pets can be obtained from Mythical Eggs, which are available at the Pet Egg Stall near the Gear Shop.
Steps to Get Them:
- Wait for Mythical Egg stock at the Pet Shop (refreshes every 30 minutes)
- Purchase a Mythical Egg for 8,000,000 Sheckles
- Hatch the egg and hope to receive either Grey Mouse or Brown Mouse
Why They’re Easier to Obtain:
- Grey Mouse has the highest drop rate among all Mythical pets at 35.71%
- Brown Mouse follows with a 26.79% chance
This makes both pets good entry points for players looking to get into Mythical-tier pets without grinding endlessly.
Which One Should You Use?
- Choose Grey Mouse if you want faster map navigation and don’t mind the high food cost
- Choose Brown Mouse if your priority is leveling up quickly and managing resources more efficiently
They both offer passive benefits without requiring any active skills, making them beginner-friendly choices.
Conclusion
Grey Mouse and Brown Mouse are two highly accessible Mythical pets that offer valuable support in Grow a Garden Roblox.
Whether you prefer faster movement or better EXP gains, these pets help smooth out your early progression without needing to rely on rare pet mechanics.
Their high drop rates make them perfect for new players aiming to get their first Mythical without spending too many resources.