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Gargantuan pets
Gargantuan pets occupy the top size class and can use special area-damage behavior. These are rare chase pets, and the confirmed route varies from pet to pet.
Gargantuan 1x1x1x1
Gargantuan 1x1x1x1 is a Gargantuan pet from the Backrooms Game Over update.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the Backrooms Danger Egg
- Source type
- Reward source
- World or event
- Backrooms Game Over
- Power
- Scales from best stat pet
- Added
- June 20, 2026
Gargantuan Aura Cat
Gargantuan Aura Cat is a Gargantuan pet tied to Exclusive Aura Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Aura Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- May 3, 2025
Gargantuan Black Balloon Cat
Gargantuan Black Balloon Cat is a Gargantuan pet tied to ADMIN ABUSE!!!.
- Availability
- Admin-only
- Class
- Gargantuan
- Source
- ADMIN ABUSE!!!
- Source type
- Admin grant
- World or event
- Admin Abuse
- Power
- Top size class with special area damage
- Added
- November 1, 2025
Gargantuan Bloom Dominus
Gargantuan Bloom Dominus is a Gargantuan pet tied to Found in the 2026 Spring Event eggs!.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the 2026 Spring Event eggs!
- Source type
- Egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- April 25, 2026
Gargantuan Blurred Agony
Gargantuan Blurred Agony is a Gargantuan pet tied to ADMIN ABUSE!!!.
- Availability
- Admin-only
- Class
- Gargantuan
- Source
- ADMIN ABUSE!!!
- Source type
- Admin grant
- World or event
- -
- Power
- Top size class with special area damage
- Added
- December 20, 2025
Gargantuan Cappuccino Brainrot
Gargantuan Cappuccino Brainrot is a Gargantuan pet tied to Exclusive Brainrot Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Brainrot Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- October 18, 2025
Gargantuan Capybara
Gargantuan Capybara is a Gargantuan pet from the Tap Gauntlet update.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the Forever Pack
- Source type
- Reward source
- World or event
- Tap Gauntlet
- Power
- Scales from best stat pet
- Added
- July 18, 2026
Gargantuan Clown Cat
Gargantuan Clown Cat is a Gargantuan pet tied to ADMIN ABUSE!!!.
- Availability
- Admin-only
- Class
- Gargantuan
- Source
- ADMIN ABUSE!!!
- Source type
- Admin grant
- World or event
- -
- Power
- Top size class with special area damage
- Added
- May 16, 2026
Gargantuan Cookie Cut Cat
Gargantuan Cookie Cut Cat is a Gargantuan pet tied to Ice Cube Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Ice Cube Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- December 20, 2025
Gargantuan Dark Dragon
Gargantuan Dark Dragon is a Gargantuan pet tied to Combine Titanic pets in the Farming World (Combine-O-Matic).
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Combine Titanic pets in the Farming World (Combine-O-Matic)
- Source type
- Egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- May 24, 2025
Gargantuan Dawn Phoenix
Gargantuan Dawn Phoenix is a Gargantuan pet tied to Spring Egg 5.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Spring Egg 5
- Source type
- Egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- April 18, 2026
Gargantuan Doge
Gargantuan Doge is a Gargantuan pet tied to Spider Pack.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Spider Pack
- Source type
- Pack
- World or event
- -
- Power
- Top size class with special area damage
- Added
- October 18, 2025
Gargantuan Dot Matrix Pegasus
Gargantuan Dot Matrix Pegasus is a Gargantuan pet tied to Exclusive Dot Matrix Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Dot Matrix Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- March 8, 2025
Gargantuan Elf Golem
Gargantuan Elf Golem is a Gargantuan pet tied to Found in the 2025 Gargantuan Present!.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the 2025 Gargantuan Present!
- Source type
- Gift
- World or event
- -
- Power
- Top size class with special area damage
- Added
- December 20, 2025
Gargantuan Evil Scarecrow Pumpkin
Gargantuan Evil Scarecrow Pumpkin is a Gargantuan pet tied to Harvest Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Harvest Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- November 22, 2025
Gargantuan Exquisite Parrot
Gargantuan Exquisite Parrot is a Gargantuan pet tied to Exclusive Raffle.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Raffle
- Source type
- Pack
- World or event
- -
- Power
- Top size class with special area damage
- Added
- May 24, 2025
Gargantuan Floppa
Gargantuan Floppa is a Gargantuan pet tied to Exclusive Raffle.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Raffle
- Source type
- Special source
- World or event
- -
- Power
- Top size class with special area damage
- Added
- March 14, 2026
Gargantuan Fluffy Cat
Gargantuan Fluffy Cat is a Gargantuan pet tied to Found in the MVP Chest!.
- Availability
- Current progression
- Class
- Gargantuan
- Source
- Found in the MVP Chest!
- Source type
- Special source
- World or event
- -
- Power
- Top size class with special area damage
- Added
- April 18, 2026
Gargantuan Forest Wyvern
Gargantuan Forest Wyvern is a Gargantuan pet tied to Exclusive Raffle.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Raffle
- Source type
- Pack
- World or event
- -
- Power
- Top size class with special area damage
- Added
- June 28, 2025
Gargantuan Frankenpup Dog
Gargantuan Frankenpup Dog is a Gargantuan pet tied to Crafted in the 2025 Halloween Event!.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Crafted in the 2025 Halloween Event!
- Source type
- Event reward
- World or event
- -
- Power
- Top size class with special area damage
- Added
- November 1, 2025
Gargantuan Gingerbread Angelus
Gargantuan Gingerbread Angelus is a Gargantuan pet tied to Miscellaneous.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Miscellaneous
- Source type
- Machine
- World or event
- -
- Power
- Top size class with special area damage
- Added
- December 24, 2025
Gargantuan Glass Squid
Gargantuan Glass Squid is a Gargantuan pet tied to Found in the Exclusive Glass Egg!.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Found in the Exclusive Glass Egg!
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- March 14, 2026
Gargantuan Googly Agony
Gargantuan Googly Agony is a Gargantuan pet tied to Exclusive Googly Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Googly Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- January 18, 2025
Gargantuan Grim Reaper
Gargantuan Grim Reaper is a Gargantuan pet tied to Gargantuan Machine Grim Reaper Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Gargantuan Machine Grim Reaper Egg
- Source type
- Machine
- World or event
- -
- Power
- Top size class with special area damage
- Added
- March 1, 2025
Gargantuan Guest 666
Gargantuan Guest 666 is a Gargantuan pet from the Backrooms Daydream update.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the Backrooms Keep Out Egg
- Source type
- Reward source
- World or event
- Backrooms Daydream
- Power
- Scales from best stat pet
- Added
- June 13, 2026
Gargantuan Hellish Axolotl
Gargantuan Hellish Axolotl is a Gargantuan pet tied to Combine Titanic pets during the Mine & Combine Event 2025 (Combine-O-Matic).
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Combine Titanic pets during the Mine & Combine Event 2025 (Combine-O-Matic)
- Source type
- Egg
- World or event
- Grow an Egg Event
- Power
- Top size class with special area damage
- Added
- March 22, 2025
Gargantuan Hippomelon
Gargantuan Hippomelon is a Gargantuan pet tied to Found in the Gargantuan Machine Hippomelon Egg!.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Found in the Gargantuan Machine Hippomelon Egg!
- Source type
- Machine
- World or event
- -
- Power
- Top size class with special area damage
- Added
- May 02, 2026
Gargantuan Hypnotic Kitsune
Gargantuan Hypnotic Kitsune is a Gargantuan pet tied to Exclusive Hypnotic Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Hypnotic Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- January 4, 2025
Gargantuan Jurassic Dragon
Gargantuan Jurassic Dragon is a Gargantuan pet tied to Exclusive Jurassic Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Jurassic Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- February 15, 2025
Gargantuan Kaiju King
Gargantuan Kaiju King is a Gargantuan pet tied to Exclusive Kaiju Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Kaiju Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- March 22, 2025
Gargantuan Krampus
Gargantuan Krampus is a Gargantuan pet tied to Found in the 2025 Gargantuan Present!.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the 2025 Gargantuan Present!
- Source type
- Gift
- World or event
- -
- Power
- Top size class with special area damage
- Added
- December 31, 2025
Gargantuan Leafy Deer
Gargantuan Leafy Deer is a Gargantuan pet tied to Autumn Egg.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Autumn Egg
- Source type
- Egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- November 22, 2025
Gargantuan Leprechaun Fox
Gargantuan Leprechaun Fox is a Gargantuan pet tied to Earned from the St. Patricks Max Level Raid Race!.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Earned from the St. Patricks Max Level Raid Race!
- Source type
- Special source
- World or event
- -
- Power
- Top size class with special area damage
- Added
- March 21, 2026
Gargantuan Lucki Angelus
Gargantuan Lucki Angelus is a Gargantuan pet tied to Earned from the St. Patricks Max Level Raid Race!.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Earned from the St. Patricks Max Level Raid Race!
- Source type
- Special source
- World or event
- -
- Power
- Top size class with special area damage
- Added
- March 14, 2026
Gargantuan Lucki Chest Mimic
Gargantuan Lucki Chest Mimic is a Gargantuan pet tied to Found in St. Patrick's Forever Pack!.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in St. Patrick's Forever Pack!
- Source type
- Pack
- World or event
- -
- Power
- Top size class with special area damage
- Added
- March 14, 2026
Gargantuan Magma Spirit
Gargantuan Magma Spirit is a Gargantuan pet tied to Exclusive Spirit Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Spirit Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- May 17, 2025
Gargantuan Matryoshka Bear
Gargantuan Matryoshka Bear is a Gargantuan pet tied to Exclusive Matryoshka Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Matryoshka Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- February 1, 2025
Gargantuan Nightfall Tiger
Gargantuan Nightfall Tiger is a Gargantuan pet tied to Found in the ADMIN ABUSE!.
- Availability
- Admin-only
- Class
- Gargantuan
- Source
- Found in the ADMIN ABUSE!
- Source type
- Admin grant
- World or event
- -
- Power
- Top size class with special area damage
- Added
- March 14, 2026
Gargantuan Nyan Cat
Gargantuan Nyan Cat is a Gargantuan pet tied to World Pack.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- World Pack
- Source type
- Pack
- World or event
- -
- Power
- Top size class with special area damage
- Added
- May 10, 2025
Gargantuan Origami Kitsune
Gargantuan Origami Kitsune is a Gargantuan pet tied to Found in the Exclusive Origami Egg!.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Found in the Exclusive Origami Egg!
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- May 09, 2026
Gargantuan Patchwork Agony
Gargantuan Patchwork Agony is a Gargantuan pet tied to Exclusive Patchwork Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Patchwork Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- April 19, 2025
Gargantuan Royal Beast
Gargantuan Royal Beast is a Gargantuan pet tied to Exclusive Beast Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Beast Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- April 5, 2025
Gargantuan Samurai Kitsune
Gargantuan Samurai Kitsune is a Gargantuan pet from the Tap Heroes update.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Earned by defeating the Zone 120 Boss in the Tap Heroes event
- Source type
- Reward source
- World or event
- Tap Heroes
- Power
- Scales from best stat pet
- Added
- July 11, 2026
Gargantuan Santa Paws
Gargantuan Santa Paws is a Gargantuan pet tied to Exclusive Snowflake Egg.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Exclusive Snowflake Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- December 21, 2024
Gargantuan Skateboard Bulldog
Gargantuan Skateboard Bulldog is a Gargantuan pet from the Backrooms Daydream update.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the 2026 Forever Pack
- Source type
- Reward source
- World or event
- Backrooms Daydream
- Power
- Scales from best stat pet
- Added
- June 13, 2026
Gargantuan Skelemelon
Gargantuan Skelemelon is a Gargantuan pet tied to Exclusive Raffle.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Raffle
- Source type
- Special source
- World or event
- -
- Power
- Top size class with special area damage
- Added
- October 18, 2025
Gargantuan Snowflake Dragon
Gargantuan Snowflake Dragon is a Gargantuan pet tied to Miscellaneous.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Miscellaneous
- Source type
- Machine
- World or event
- -
- Power
- Top size class with special area damage
- Added
- December 31, 2025
Gargantuan Soccerball Trophy Angelus
Gargantuan Soccerball Trophy Angelus is a Gargantuan pet from the World Cup update.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found by earning points in the Infinite Soccer Mode
- Source type
- Reward source
- World or event
- World Cup
- Power
- Scales from best stat pet
- Added
- June 27, 2026
Gargantuan Solar Lion
Gargantuan Solar Lion is a Gargantuan pet from the Backrooms Daydream update.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the Exclusive Space Egg
- Source type
- Reward source
- World or event
- Backrooms Daydream
- Power
- Scales from best stat pet
- Added
- June 13, 2026
Gargantuan Special Ops Moth
Gargantuan Special Ops Moth is a Gargantuan pet tied to Found in the Exclusive Special Ops Egg!.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Found in the Exclusive Special Ops Egg!
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- April 18, 2026
Gargantuan Starfall Dragon
Gargantuan Starfall Dragon is a Gargantuan pet tied to Exclusive Raffle.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Raffle
- Source type
- Pack
- World or event
- -
- Power
- Top size class with special area damage
- Added
- April 19, 2025
Gargantuan Storm Wolf
Gargantuan Storm Wolf is a Gargantuan pet from the World Cup update.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the 2026 Thunderstorm & Lunar Clan Battle! (and more)
- Source type
- Reward source
- World or event
- World Cup
- Power
- Scales from best stat pet
- Added
- June 27, 2026
Gargantuan Super Cat
Gargantuan Super Cat is a Gargantuan pet tied to ADMIN ABUSE!!!.
- Availability
- Admin-only
- Class
- Gargantuan
- Source
- ADMIN ABUSE!!!
- Source type
- Admin grant
- World or event
- Admin Abuse
- Power
- Top size class with special area damage
- Added
- October 18, 2025
Gargantuan Super Coral Kraken
Gargantuan Super Coral Kraken is a Gargantuan pet tied to Exclusive Super Coral Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Super Coral Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- June 28, 2025
Gargantuan Super Fluffy Cat
Gargantuan Super Fluffy Cat is a Gargantuan pet from the Tap Heroes update.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the Exclusive Super Fluffy Egg
- Source type
- Reward source
- World or event
- Tap Heroes
- Power
- Scales from best stat pet
- Added
- July 11, 2026
Gargantuan Super Spider
Gargantuan Super Spider
Gargantuan Super Spider is a Gargantuan pet listed in the official Pet Simulator 99 collection.
- Availability
- Currently obtainable
- Class
- Gargantuan
- Source
- Found in the Exclusive Matryoshka Egg
- Source type
- Reward source
- World or event
- -
- Power
- Scales from best stat pet
- Added
- -
Gargantuan Totem Monkey
Gargantuan Totem Monkey is a Gargantuan pet tied to Exclusive Totem Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Totem Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- June 14, 2025
Gargantuan Treasure Angelus
Gargantuan Treasure Angelus is a Gargantuan pet tied to Exclusive Treasure Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Treasure Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- July 12, 2025
Gargantuan Vapor Phoenix
Gargantuan Vapor Phoenix is a Gargantuan pet from the World Cup update.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the Exclusive Vapor Egg
- Source type
- Reward source
- World or event
- World Cup
- Power
- Scales from best stat pet
- Added
- June 27, 2026
Gargantuan Wicked Kirin
Gargantuan Wicked Kirin is a Gargantuan pet tied to Found in the Veilwood Time Trials Contest!.
- Availability
- Current progression
- Class
- Gargantuan
- Source
- Found in the Veilwood Time Trials Contest!
- Source type
- Special source
- World or event
- -
- Power
- Top size class with special area damage
- Added
- May 02, 2026
Gargantuan Wise Cat
Gargantuan Wise Cat is a Gargantuan pet tied to Found in the 2026 Spring Forever Pack!.
- Availability
- Event-origin
- Class
- Gargantuan
- Source
- Found in the 2026 Spring Forever Pack!
- Source type
- Pack
- World or event
- -
- Power
- Top size class with special area damage
- Added
- April 18, 2026
Gargantuan Yin-Yang Kitsune
Gargantuan Yin-Yang Kitsune is a Gargantuan pet tied to Exclusive Yin-Yang Egg.
- Availability
- Limited source
- Class
- Gargantuan
- Source
- Exclusive Yin-Yang Egg
- Source type
- Exclusive egg
- World or event
- -
- Power
- Top size class with special area damage
- Added
- May 31, 2025
| Image | Name | Description | Availability | Class | Source | Source type | World or event | Power | Added |
|---|---|---|---|---|---|---|---|---|---|
| Gargantuan 1x1x1x1 | Gargantuan 1x1x1x1 is a Gargantuan pet from the Backrooms Game Over update. | Event-origin | Gargantuan | Found in the Backrooms Danger Egg | Reward source | Backrooms Game Over | Scales from best stat pet | June 20, 2026 | |
| Gargantuan Aura Cat | Gargantuan Aura Cat is a Gargantuan pet tied to Exclusive Aura Egg. | Limited source | Gargantuan | Exclusive Aura Egg | Exclusive egg | - | Top size class with special area damage | May 3, 2025 | |
| Gargantuan Black Balloon Cat | Gargantuan Black Balloon Cat is a Gargantuan pet tied to ADMIN ABUSE!!!. | Admin-only | Gargantuan | ADMIN ABUSE!!! | Admin grant | Admin Abuse | Top size class with special area damage | November 1, 2025 | |
| Gargantuan Bloom Dominus | Gargantuan Bloom Dominus is a Gargantuan pet tied to Found in the 2026 Spring Event eggs!. | Event-origin | Gargantuan | Found in the 2026 Spring Event eggs! | Egg | - | Top size class with special area damage | April 25, 2026 | |
| Gargantuan Blurred Agony | Gargantuan Blurred Agony is a Gargantuan pet tied to ADMIN ABUSE!!!. | Admin-only | Gargantuan | ADMIN ABUSE!!! | Admin grant | - | Top size class with special area damage | December 20, 2025 | |
| Gargantuan Cappuccino Brainrot | Gargantuan Cappuccino Brainrot is a Gargantuan pet tied to Exclusive Brainrot Egg. | Limited source | Gargantuan | Exclusive Brainrot Egg | Exclusive egg | - | Top size class with special area damage | October 18, 2025 | |
| Gargantuan Capybara | Gargantuan Capybara is a Gargantuan pet from the Tap Gauntlet update. | Event-origin | Gargantuan | Found in the Forever Pack | Reward source | Tap Gauntlet | Scales from best stat pet | July 18, 2026 | |
| Gargantuan Clown Cat | Gargantuan Clown Cat is a Gargantuan pet tied to ADMIN ABUSE!!!. | Admin-only | Gargantuan | ADMIN ABUSE!!! | Admin grant | - | Top size class with special area damage | May 16, 2026 | |
| Gargantuan Cookie Cut Cat | Gargantuan Cookie Cut Cat is a Gargantuan pet tied to Ice Cube Egg. | Limited source | Gargantuan | Ice Cube Egg | Exclusive egg | - | Top size class with special area damage | December 20, 2025 | |
| Gargantuan Dark Dragon | Gargantuan Dark Dragon is a Gargantuan pet tied to Combine Titanic pets in the Farming World (Combine-O-Matic). | Event-origin | Gargantuan | Combine Titanic pets in the Farming World (Combine-O-Matic) | Egg | - | Top size class with special area damage | May 24, 2025 | |
| Gargantuan Dawn Phoenix | Gargantuan Dawn Phoenix is a Gargantuan pet tied to Spring Egg 5. | Event-origin | Gargantuan | Spring Egg 5 | Egg | - | Top size class with special area damage | April 18, 2026 | |
| Gargantuan Doge | Gargantuan Doge is a Gargantuan pet tied to Spider Pack. | Limited source | Gargantuan | Spider Pack | Pack | - | Top size class with special area damage | October 18, 2025 | |
| Gargantuan Dot Matrix Pegasus | Gargantuan Dot Matrix Pegasus is a Gargantuan pet tied to Exclusive Dot Matrix Egg. | Limited source | Gargantuan | Exclusive Dot Matrix Egg | Exclusive egg | - | Top size class with special area damage | March 8, 2025 | |
| Gargantuan Elf Golem | Gargantuan Elf Golem is a Gargantuan pet tied to Found in the 2025 Gargantuan Present!. | Event-origin | Gargantuan | Found in the 2025 Gargantuan Present! | Gift | - | Top size class with special area damage | December 20, 2025 | |
| Gargantuan Evil Scarecrow Pumpkin | Gargantuan Evil Scarecrow Pumpkin is a Gargantuan pet tied to Harvest Egg. | Limited source | Gargantuan | Harvest Egg | Exclusive egg | - | Top size class with special area damage | November 22, 2025 | |
| Gargantuan Exquisite Parrot | Gargantuan Exquisite Parrot is a Gargantuan pet tied to Exclusive Raffle. | Limited source | Gargantuan | Exclusive Raffle | Pack | - | Top size class with special area damage | May 24, 2025 | |
| Gargantuan Floppa | Gargantuan Floppa is a Gargantuan pet tied to Exclusive Raffle. | Limited source | Gargantuan | Exclusive Raffle | Special source | - | Top size class with special area damage | March 14, 2026 | |
| Gargantuan Fluffy Cat | Gargantuan Fluffy Cat is a Gargantuan pet tied to Found in the MVP Chest!. | Current progression | Gargantuan | Found in the MVP Chest! | Special source | - | Top size class with special area damage | April 18, 2026 | |
| Gargantuan Forest Wyvern | Gargantuan Forest Wyvern is a Gargantuan pet tied to Exclusive Raffle. | Limited source | Gargantuan | Exclusive Raffle | Pack | - | Top size class with special area damage | June 28, 2025 | |
| Gargantuan Frankenpup Dog | Gargantuan Frankenpup Dog is a Gargantuan pet tied to Crafted in the 2025 Halloween Event!. | Event-origin | Gargantuan | Crafted in the 2025 Halloween Event! | Event reward | - | Top size class with special area damage | November 1, 2025 | |
| Gargantuan Gingerbread Angelus | Gargantuan Gingerbread Angelus is a Gargantuan pet tied to Miscellaneous. | Event-origin | Gargantuan | Miscellaneous | Machine | - | Top size class with special area damage | December 24, 2025 | |
| Gargantuan Glass Squid | Gargantuan Glass Squid is a Gargantuan pet tied to Found in the Exclusive Glass Egg!. | Limited source | Gargantuan | Found in the Exclusive Glass Egg! | Exclusive egg | - | Top size class with special area damage | March 14, 2026 | |
| Gargantuan Googly Agony | Gargantuan Googly Agony is a Gargantuan pet tied to Exclusive Googly Egg. | Limited source | Gargantuan | Exclusive Googly Egg | Exclusive egg | - | Top size class with special area damage | January 18, 2025 | |
| Gargantuan Grim Reaper | Gargantuan Grim Reaper is a Gargantuan pet tied to Gargantuan Machine Grim Reaper Egg. | Limited source | Gargantuan | Gargantuan Machine Grim Reaper Egg | Machine | - | Top size class with special area damage | March 1, 2025 | |
| Gargantuan Guest 666 | Gargantuan Guest 666 is a Gargantuan pet from the Backrooms Daydream update. | Event-origin | Gargantuan | Found in the Backrooms Keep Out Egg | Reward source | Backrooms Daydream | Scales from best stat pet | June 13, 2026 | |
| Gargantuan Hellish Axolotl | Gargantuan Hellish Axolotl is a Gargantuan pet tied to Combine Titanic pets during the Mine & Combine Event 2025 (Combine-O-Matic). | Event-origin | Gargantuan | Combine Titanic pets during the Mine & Combine Event 2025 (Combine-O-Matic) | Egg | Grow an Egg Event | Top size class with special area damage | March 22, 2025 | |
| Gargantuan Hippomelon | Gargantuan Hippomelon is a Gargantuan pet tied to Found in the Gargantuan Machine Hippomelon Egg!. | Limited source | Gargantuan | Found in the Gargantuan Machine Hippomelon Egg! | Machine | - | Top size class with special area damage | May 02, 2026 | |
| Gargantuan Hypnotic Kitsune | Gargantuan Hypnotic Kitsune is a Gargantuan pet tied to Exclusive Hypnotic Egg. | Limited source | Gargantuan | Exclusive Hypnotic Egg | Exclusive egg | - | Top size class with special area damage | January 4, 2025 | |
| Gargantuan Jurassic Dragon | Gargantuan Jurassic Dragon is a Gargantuan pet tied to Exclusive Jurassic Egg. | Limited source | Gargantuan | Exclusive Jurassic Egg | Exclusive egg | - | Top size class with special area damage | February 15, 2025 | |
| Gargantuan Kaiju King | Gargantuan Kaiju King is a Gargantuan pet tied to Exclusive Kaiju Egg. | Limited source | Gargantuan | Exclusive Kaiju Egg | Exclusive egg | - | Top size class with special area damage | March 22, 2025 | |
| Gargantuan Krampus | Gargantuan Krampus is a Gargantuan pet tied to Found in the 2025 Gargantuan Present!. | Event-origin | Gargantuan | Found in the 2025 Gargantuan Present! | Gift | - | Top size class with special area damage | December 31, 2025 | |
| Gargantuan Leafy Deer | Gargantuan Leafy Deer is a Gargantuan pet tied to Autumn Egg. | Event-origin | Gargantuan | Autumn Egg | Egg | - | Top size class with special area damage | November 22, 2025 | |
| Gargantuan Leprechaun Fox | Gargantuan Leprechaun Fox is a Gargantuan pet tied to Earned from the St. Patricks Max Level Raid Race!. | Event-origin | Gargantuan | Earned from the St. Patricks Max Level Raid Race! | Special source | - | Top size class with special area damage | March 21, 2026 | |
| Gargantuan Lucki Angelus | Gargantuan Lucki Angelus is a Gargantuan pet tied to Earned from the St. Patricks Max Level Raid Race!. | Event-origin | Gargantuan | Earned from the St. Patricks Max Level Raid Race! | Special source | - | Top size class with special area damage | March 14, 2026 | |
| Gargantuan Lucki Chest Mimic | Gargantuan Lucki Chest Mimic is a Gargantuan pet tied to Found in St. Patrick's Forever Pack!. | Event-origin | Gargantuan | Found in St. Patrick's Forever Pack! | Pack | - | Top size class with special area damage | March 14, 2026 | |
| Gargantuan Magma Spirit | Gargantuan Magma Spirit is a Gargantuan pet tied to Exclusive Spirit Egg. | Limited source | Gargantuan | Exclusive Spirit Egg | Exclusive egg | - | Top size class with special area damage | May 17, 2025 | |
| Gargantuan Matryoshka Bear | Gargantuan Matryoshka Bear is a Gargantuan pet tied to Exclusive Matryoshka Egg. | Limited source | Gargantuan | Exclusive Matryoshka Egg | Exclusive egg | - | Top size class with special area damage | February 1, 2025 | |
| Gargantuan Nightfall Tiger | Gargantuan Nightfall Tiger is a Gargantuan pet tied to Found in the ADMIN ABUSE!. | Admin-only | Gargantuan | Found in the ADMIN ABUSE! | Admin grant | - | Top size class with special area damage | March 14, 2026 | |
| Gargantuan Nyan Cat | Gargantuan Nyan Cat is a Gargantuan pet tied to World Pack. | Limited source | Gargantuan | World Pack | Pack | - | Top size class with special area damage | May 10, 2025 | |
| Gargantuan Origami Kitsune | Gargantuan Origami Kitsune is a Gargantuan pet tied to Found in the Exclusive Origami Egg!. | Limited source | Gargantuan | Found in the Exclusive Origami Egg! | Exclusive egg | - | Top size class with special area damage | May 09, 2026 | |
| Gargantuan Patchwork Agony | Gargantuan Patchwork Agony is a Gargantuan pet tied to Exclusive Patchwork Egg. | Limited source | Gargantuan | Exclusive Patchwork Egg | Exclusive egg | - | Top size class with special area damage | April 19, 2025 | |
| Gargantuan Royal Beast | Gargantuan Royal Beast is a Gargantuan pet tied to Exclusive Beast Egg. | Limited source | Gargantuan | Exclusive Beast Egg | Exclusive egg | - | Top size class with special area damage | April 5, 2025 | |
| Gargantuan Samurai Kitsune | Gargantuan Samurai Kitsune is a Gargantuan pet from the Tap Heroes update. | Event-origin | Gargantuan | Earned by defeating the Zone 120 Boss in the Tap Heroes event | Reward source | Tap Heroes | Scales from best stat pet | July 11, 2026 | |
| Gargantuan Santa Paws | Gargantuan Santa Paws is a Gargantuan pet tied to Exclusive Snowflake Egg. | Event-origin | Gargantuan | Exclusive Snowflake Egg | Exclusive egg | - | Top size class with special area damage | December 21, 2024 | |
| Gargantuan Skateboard Bulldog | Gargantuan Skateboard Bulldog is a Gargantuan pet from the Backrooms Daydream update. | Event-origin | Gargantuan | Found in the 2026 Forever Pack | Reward source | Backrooms Daydream | Scales from best stat pet | June 13, 2026 | |
| Gargantuan Skelemelon | Gargantuan Skelemelon is a Gargantuan pet tied to Exclusive Raffle. | Limited source | Gargantuan | Exclusive Raffle | Special source | - | Top size class with special area damage | October 18, 2025 | |
| Gargantuan Snowflake Dragon | Gargantuan Snowflake Dragon is a Gargantuan pet tied to Miscellaneous. | Event-origin | Gargantuan | Miscellaneous | Machine | - | Top size class with special area damage | December 31, 2025 | |
| Gargantuan Soccerball Trophy Angelus | Gargantuan Soccerball Trophy Angelus is a Gargantuan pet from the World Cup update. | Event-origin | Gargantuan | Found by earning points in the Infinite Soccer Mode | Reward source | World Cup | Scales from best stat pet | June 27, 2026 | |
| Gargantuan Solar Lion | Gargantuan Solar Lion is a Gargantuan pet from the Backrooms Daydream update. | Event-origin | Gargantuan | Found in the Exclusive Space Egg | Reward source | Backrooms Daydream | Scales from best stat pet | June 13, 2026 | |
| Gargantuan Special Ops Moth | Gargantuan Special Ops Moth is a Gargantuan pet tied to Found in the Exclusive Special Ops Egg!. | Limited source | Gargantuan | Found in the Exclusive Special Ops Egg! | Exclusive egg | - | Top size class with special area damage | April 18, 2026 | |
| Gargantuan Starfall Dragon | Gargantuan Starfall Dragon is a Gargantuan pet tied to Exclusive Raffle. | Limited source | Gargantuan | Exclusive Raffle | Pack | - | Top size class with special area damage | April 19, 2025 | |
| Gargantuan Storm Wolf | Gargantuan Storm Wolf is a Gargantuan pet from the World Cup update. | Event-origin | Gargantuan | Found in the 2026 Thunderstorm & Lunar Clan Battle! (and more) | Reward source | World Cup | Scales from best stat pet | June 27, 2026 | |
| Gargantuan Super Cat | Gargantuan Super Cat is a Gargantuan pet tied to ADMIN ABUSE!!!. | Admin-only | Gargantuan | ADMIN ABUSE!!! | Admin grant | Admin Abuse | Top size class with special area damage | October 18, 2025 | |
| Gargantuan Super Coral Kraken | Gargantuan Super Coral Kraken is a Gargantuan pet tied to Exclusive Super Coral Egg. | Limited source | Gargantuan | Exclusive Super Coral Egg | Exclusive egg | - | Top size class with special area damage | June 28, 2025 | |
| Gargantuan Super Fluffy Cat | Gargantuan Super Fluffy Cat is a Gargantuan pet from the Tap Heroes update. | Event-origin | Gargantuan | Found in the Exclusive Super Fluffy Egg | Reward source | Tap Heroes | Scales from best stat pet | July 11, 2026 | |
Gargantuan Super Spider | Gargantuan Super Spider | Gargantuan Super Spider is a Gargantuan pet listed in the official Pet Simulator 99 collection. | Currently obtainable | Gargantuan | Found in the Exclusive Matryoshka Egg | Reward source | - | Scales from best stat pet | - |
| Gargantuan Totem Monkey | Gargantuan Totem Monkey is a Gargantuan pet tied to Exclusive Totem Egg. | Limited source | Gargantuan | Exclusive Totem Egg | Exclusive egg | - | Top size class with special area damage | June 14, 2025 | |
| Gargantuan Treasure Angelus | Gargantuan Treasure Angelus is a Gargantuan pet tied to Exclusive Treasure Egg. | Limited source | Gargantuan | Exclusive Treasure Egg | Exclusive egg | - | Top size class with special area damage | July 12, 2025 | |
| Gargantuan Vapor Phoenix | Gargantuan Vapor Phoenix is a Gargantuan pet from the World Cup update. | Event-origin | Gargantuan | Found in the Exclusive Vapor Egg | Reward source | World Cup | Scales from best stat pet | June 27, 2026 | |
| Gargantuan Wicked Kirin | Gargantuan Wicked Kirin is a Gargantuan pet tied to Found in the Veilwood Time Trials Contest!. | Current progression | Gargantuan | Found in the Veilwood Time Trials Contest! | Special source | - | Top size class with special area damage | May 02, 2026 | |
| Gargantuan Wise Cat | Gargantuan Wise Cat is a Gargantuan pet tied to Found in the 2026 Spring Forever Pack!. | Event-origin | Gargantuan | Found in the 2026 Spring Forever Pack! | Pack | - | Top size class with special area damage | April 18, 2026 | |
| Gargantuan Yin-Yang Kitsune | Gargantuan Yin-Yang Kitsune is a Gargantuan pet tied to Exclusive Yin-Yang Egg. | Limited source | Gargantuan | Exclusive Yin-Yang Egg | Exclusive egg | - | Top size class with special area damage | May 31, 2025 |