Gargantuan Pets
Gargantuan Pets are a type of pet in Pet Simulator 99. They are larger than Titanic Pets in both size and power. They can only be acquired from Exclusive Eggs, Gargantuan Machine Eggs, and occasional events. They always have the Exclusive rarity, along with 5 question marks to describe their power. In the inventory, their icons are 2x bigger than Titanic Pets, and they always appear at the top of the inventory.
When riding a Gargantuan Pet, up to 4 other players can ride the pet as well, but they cannot control it. Gargantuan Pets also have a Ground Slam ability, which lets the pet deal AoE damage to breakables within its radius.
They were first teased in a post from X (formerly Twitter) with a like goal. While the post never achieved the goal, Gargantuan Santa Paws was added regardless in Update 39.
Hatching Cutscene
When a player hatches a Gargantuan Pet, a hatching cutscene is displayed for everyone in the server. The sky turns dark, the egg the pet is hatched from levitates into the sky, and a crack in the sky emerges. After some time, the player ascends to the crack and rides the pet they hatched down to the ground. If the pet is golden, rainbow and/or shiny, this is displayed on the pet as well. All Gargantuan Pets have the same cutscene.
List of Gargantuan Pets
All 63 Gargantuan Pets, from oldest to newest:
| Pet | How Obtained | Date Added |
|---|---|---|
 Gargantuan Santa Paws | Exclusive Snowflake Egg; 2024 Gargantuan Christmas Present; 2025 New Years Gift | December 21, 2024 |
 Gargantuan Hypnotic Kitsune | Exclusive Hypnotic Egg | January 4, 2025 |
 Gargantuan Googly Agony | Exclusive Googly Egg | January 18, 2025 |
 Gargantuan Matryoshka Bear | Exclusive Matryoshka Egg | February 1, 2025 |
 Gargantuan Jurassic Dragon | Exclusive Jurassic Egg | February 15, 2025 |
 Gargantuan Grim Reaper | Gargantuan Machine Grim Reaper Egg | March 1, 2025 |
 Gargantuan Dot Matrix Pegasus | Exclusive Dot Matrix Egg | March 8, 2025 |
 Gargantuan Hellish Axolotl | Combine Titanic pets during the Mine & Combine Event 2025 (Combine-O-Matic) | March 22, 2025 |
 Gargantuan Kaiju King | Exclusive Kaiju Egg | March 22, 2025 |
 Gargantuan Royal Beast | Exclusive Beast Egg | April 5, 2025 |
 Gargantuan Patchwork Agony | Exclusive Patchwork Egg | April 19, 2025 |
 Gargantuan Starfall Dragon | Easter Pack Raffle Tickets | April 19, 2025 |
 Gargantuan Aura Cat | Exclusive Aura Egg | May 3, 2025 |
 Gargantuan Nyan Cat | The Forever Pack | May 10, 2025 |
 Gargantuan Magma Spirit | Exclusive Spirit Egg | May 17, 2025 |
 Gargantuan Dark Dragon | Combine Titanic pets in the Farming World (Combine-O-Matic) | May 24, 2025 |
 Gargantuan Exquisite Parrot | Farming Pack Raffle Tickets | May 24, 2025 |
 Gargantuan Yin-Yang Kitsune | Exclusive Yin-Yang Egg | May 31, 2025 |
 Gargantuan Totem Monkey | Exclusive Totem Egg | June 14, 2025 |
 Gargantuan Forest Wyvern | Muscle Pack Raffle Tickets | June 28, 2025 |
 Gargantuan Super Coral Kraken | Exclusive Super Coral Egg | June 28, 2025 |
 Gargantuan Treasure Angelus | Exclusive Treasure Egg | July 12, 2025 |
 Gargantuan Cappuccino Brainrot | Found in the Exclusive Brainrot Egg! | October 18, 2025 |
 Gargantuan Doge | Found in the Spider Forever Pack! | October 18, 2025 |
 Gargantuan Skelemelon | Found in the Exclusive Raffle! | October 18, 2025 |
 Gargantuan Super Cat | ADMIN ABUSE!!! | October 18, 2025 |
 Gargantuan Black Balloon Cat | ADMIN ABUSE!!! | November 1, 2025 |
 Gargantuan Frankenpup Dog | Crafted in the 2025 Halloween Event! | November 1, 2025 |
 Gargantuan Evil Scarecrow Pumpkin | Found in the Exclusive Harvest Egg! | November 22, 2025 |
 Gargantuan Leafy Deer | Hatchable during the Autumn Event 2025 | November 22, 2025 |
 Gargantuan Blurred Agony | ADMIN ABUSE!!! | December 20, 2025 |
 Gargantuan Cookie Cut Cat | Found in the Exclusive Ice Cube Egg! | December 20, 2025 |
 Gargantuan Elf Golem | Found in the 2025 Gargantuan Present! | December 20, 2025 |
 Gargantuan Gingerbread Angelus | Obtained from the 2025 Christmas Crafting Machine! | December 24, 2025 |
 Gargantuan Krampus | Found in the 2025 Gargantuan Present! | December 31, 2025 |
 Gargantuan Snowflake Dragon | Obtained from the 2025 Christmas Crafting Machine! | December 31, 2025 |
 Gargantuan Floppa | Found in the Exclusive Raffle! | March 14, 2026 |
 Gargantuan Glass Squid | Found in the Exclusive Glass Egg! | March 14, 2026 |
 Gargantuan Lucki Angelus | Earned from the St. Patricks Max Level Raid Race! | March 14, 2026 |
 Gargantuan Lucki Chest Mimic | Found in St. Patrick's Forever Pack! | March 14, 2026 |
 Gargantuan Nightfall Tiger | Found in the ADMIN ABUSE! | March 14, 2026 |
 Gargantuan Leprechaun Fox | Earned from the St. Patricks Max Level Raid Race! | March 21, 2026 |
 Gargantuan Dawn Phoenix | Found in the 2026 Spring Event eggs! | April 18, 2026 |
 Gargantuan Fluffy Cat | Found in the MVP Chest! | April 18, 2026 |
 Gargantuan Special Ops Moth | Found in the Exclusive Special Ops Egg! | April 18, 2026 |
 Gargantuan Wise Cat | Found in the 2026 Spring Forever Pack! | April 18, 2026 |
 Gargantuan Bloom Dominus | Found in the 2026 Spring Event eggs! | April 25, 2026 |
 Gargantuan Hippomelon | Found in the Gargantuan Machine Hippomelon Egg! | May 02, 2026 |
 Gargantuan Wicked Kirin | Found in the Veilwood Time Trials Contest! | May 02, 2026 |
 Gargantuan Origami Kitsune | Found in the Exclusive Origami Egg! | May 09, 2026 |
 Gargantuan Clown Cat | ADMIN ABUSE!!! | May 16, 2026 |
 Gargantuan Guest 666 | Found in the Backrooms Keep Out Egg! | June 13, 2026 |
 Gargantuan Skateboard Bulldog | Found in the 2026 Forever Pack! | June 13, 2026 |
 Gargantuan Solar Lion | Found in the Exclusive Space Egg! | June 13, 2026 |
 Gargantuan 1x1x1x1 | Found in the Backrooms Danger Egg! | June 20, 2026 |
 Gargantuan Vapor Phoenix | * Found in the Exclusive Vapor Egg! | June 27, 2026 |
 Gargantuan Soccerball Trophy Angelus | * Found by earning points in the Infinite Soccer Mode! | June 27, 2026 |
 Gargantuan Storm Wolf | * Found in the 2026 Soccer Clan Battle! (and more) | July 3, 2026 |
 Gargantuan Samurai Kitsune | * Earned by defeating the Zone 120 Boss in the Tap Heroes event! | July 11, 2026 |
 Gargantuan Super Fluffy Cat | * Found in the Exclusive Super Fluffy Egg! | July 11, 2026 |
 Gargantuan Capybara | Found in the Forever Pack! | July 18, 2026 |
 Gargantuan Holofoil Agony | Found in the Exclusive Holofoil Egg! | July 25, 2026 |
 Gargantuan Rose Wolf | Won from the Coin Boss jackpot! | July 25, 2026 |
Trivia
- Gargantuan Santa Paws was the first Gargantuan Pet to be added to the game.
- Gargantuan Googly Agony is the first Gargantuan Pet to be flyable.
- When gargantuan pets were first teased, a Gargantuan Cat was featured as well, but it is currently not implemented in the game.
- These are the first type of pets to have a hatching cutscene.
- All Gargantuan Pets have a serial and the username of the player who hatched the pet. They are also the only type of pets where variants have their own serials.