Roblox - Game
WHERE TO PLAY
Roblox is enjoyed by millions. A sandbox game where you can play, create, and come together with people all over the world. Jump into any of the community experiences, or take advantage of promo codes for cool content.
Pet Simulator 99letsRobloxplayers collect a massive assortment of adorable, cube-shaped pets. Huge pets, larger than the player character and much more powerful than the standard variety, are extremely rare; even a single Huge pet will be the pride of any player’s collection!

Getting a Huge pet can take dedication and luck, but there are multiple ways to get yourself some giant-size critters. Read on to find out every possible method of adding a Huge to your collection - there’s more than one way to hatch a cat (or an axolotl, or a shark, or…).
Updated on Jul 19, 2025 by Matt Arnold:There are even more ways to get Huge Pets after PS99’s first update! We’ve added them to this guide to help you learn them all.

Redeem A Code
The surest way to get a Huge pet is toredeem a promo codefor one. Promo codes are packed in withofficial Pet Simulator toys and merchandise.Click below to learn everything there is to know about finding and redeeming codes in Pet Simulator 99!
All unredeemed merchandise codes work in Pet Simulator 99, even ones that were printed before the game was released. These codes willno longer work in Pet Simulator X; they must be redeemed in the latest game.

Transfer A Huge Pet From Pet Simulator X
If you played the previous game in the series, Pet Simulator X, then you may already have some Huge pets in your collection. All that hard work doesn’t have to go to waste, however. You cansend pets from Pet Simulator Xto Pet Simulator 99using the Pet Boxes in each game.
Transferring a pet lets you use them in both games, butthis system is only available until June 2024.Check out the article below for details on how to send your Huge pets over to PS99.

How To Hatch A Huge Pet
Each time you hatch an egg in Pet Simulator 99, there is a small - and I meanvery, very small- chance that you’ll receive a Huge pet. Huge pet hatchingunlocks after you’ve completed the second Rebirth, so don’t expect to see any Huge pets at the very beginning of your adventure.
The exact odds are unknown, but fans estimate that the chance of any single egg hatching a Huge are approximatelyone in one million.

Look for a large sign above the hatching area; it will showthree pets who have slightly increased Huge hatch ratesfor a limited time. Hatching eggs that contain those pets will give you better odds of hatching a Huge, but you’ll still have to be very lucky.
The locked gate under the billboard leads to an alternate hatching area with higher Huge rates,but it costs 3250 Robux to unlock.

Play Minigames
As you advance through the world of Pet Simulator 99, you’ll encounterportals that lead to minigameslike the Dig Site and the Fishing Area. If a portalhas a sign in front of it saying that you can win a Huge Pet, then it’s definitely worth taking a break from gathering coins to try your luck.
Winning a Huge Pet in a minigame still requires a lot of patience and luck, but it’s theonly way to get companions like the Fossil Dragon.

Trade With Other Players
Pet Simulatorencourages trading between players, and if you have some rare pets like Shinies or Exclusives that you no longer want, you might be able to swap them for a Huge pet with another fan.
Huge pets are highly-prized, so it’s a good idea toknow how rare and valuable your pets arewhen making a trade. Hovering over a pet will showhow many copies exist in the entire world- the lower the number, the more valuable your pet is!
If you’re not sure what your pet is worth,check out Cosmic Values, an independent website dedicated to tracking how much collectibles in Pet Simulator games typically trade for.
Always practice basic Internet safety when trading; keep your conversations inside Roblox chat where it can be monitored in case you need to report a player. Only trade PS99 items for other PS99 items; cross-trading, or exchanging items from one Roblox experience for items in another, isprohibited by Roblox’s terms of serviceand could result in a ban.
Visit The Trade Plaza
After your first Rebirth, you’ll receive theCastle Key, which lets you enter the castle on the left just outside the Spawn Area. Inside, you’ll find a portal to the Trade Plaza. Players can sell pets there, either from vendor booths or through the Auction House.
Buying pets from other players at the Trade Plaza costs Diamonds - usually lots of them. Use Diamond Enchants, Comets, and buffs to farm Diamonds more efficiently, anddon’t forget to visit the Free Diamondmachinesthroughout the map daily!
Diamonds can bebought with Robuxor earned in-game by completing challenges and finding Diamond Breakables throughout the world.
Use The Huge-A-Tron
The castle also contains the Huge-A-Tron, a large machine in a room off to the side. You canput pets and eggs in the Huge-A-Tronto exchange them for a Huge Egg, but you’re able to’t do this with just any pet.
Only Exclusive pets - those that were purchased from the Exclusive Store using Robux - can be placed in the Huge-A-Tron. Doing so turns them into points; the more points you have, the cheaper it is to activate the Huge-A-Tron. Activating the Huge-A-Tron will cost a few hundred Robux, unless you spend 100 points. As with other fusion machines, pets and eggs placed in the Huge-A-Tronare permanently removed from your inventory.
Trading for Exclusive pets and eggs is a great way to earn points for the Huge-A-Tron without spending Robux yourself.
When Activated, the Huge-A-Tron produces a Huge version of an Exclusive pet. It’s a lot of investment for one pet, but that makes these collectibles all the rarer.
Exclusive eggs can get expensive in large quantities, so it’s actuallycheaper to spend Robux to activate the Huge-A-Tronthan to wait until you have 100 points built up.