Gray, silver, green Gray, silver, yellow
Jellygnite,  or  Jellies, is a recurring enemy in the  . It is a mass-produced, jellyfish-based Sonic the Hedgehog series Badnik created by Dr. Eggman.
Jellygnites are based on
jellyfish; their main body is a metallic cap with a pair of eyes and three tentacles sprouting from their bottom. Each tentacle consists of four ball segments.
Sonic the Hedgehog 2 (2013)
2013 re-release of , the Jellygnites appear as enemies. In this game, they are only found floating around in the lower water sections of Sonic the Hedgehog 2 Hidden Palace Zone.
Similar to the
Grabbers, the Jellygnites have more realistic movements. If a character gets caught in their long arms, it will electrify them and blow themselves up a short while afterward (without releasing an Animal) to damage the player. Like the Grabbers, the player can escape the Jellygnites' grasp by tapping left and right repeatedly. To destroy a Jellygnite, the player has to hit it from above to avoid being grabbed.
, the Jellygnites reappear as enemies. In terms of design, they look much like how they did in their Sonic Mania debut, except their spots are now yellow. In this game, they appear underwater in both Acts of Hydrocity Zone.
In gameplay, the Jellygnites behave just like in their debut game: they swim up and down, and will catch those who get near them before trying to self-destruct. Also, upon destroying a Jellygnite, it will release an
Powers and abilities
The Jellygnites have an ability to swim. When they manage to catch their prey in their tentacles, they are able to self-destruct to inflict damage to their captive.
Being the only new Badnik to be featured in the 2013 re-release of Sonic 2, Jellygnites do not appear in any known prototype versions of the game and were likely an original concept for the Zone's official re-creation.
 Jellygnite's name may be a pun on "jellyfish" and "gelignite", a type of gelatin-like explosive.
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Sonic ( Super Sonic, Glitch Sonic) | Tails ( Super Tails**) | Knuckles ( Super Knuckles) | Dr. Robotnik | Animals ( Becky, Cucky, Flicky, Pocky, Pecky, Cucky, Ricky, Picky, Rocky, Locky, Wocky, Micky, Tocky)
Badniks Aquis | Asteron | Balkiry | Banper* | BBat** | BFish* | Bubbler* | Bubbler's Mother* | Buzzer | Cactus* | Chop Chop | Clucker | Coconuts | Crawl | Crawlton | Flasher | Frog* | Gator* | Gohla | Grabber | Grounder | Jellygnite** | Lobster* | Masher | Nebula | Octus | Rexon | Shellcracker | Slicer | Snail* | Spiker | Spiny | Stegway** | Turtloids | Redz** | Whisp
Zones Emerald Hill Zone | Chemical Plant Zone | Aquatic Ruin Zone | Casino Night Zone | Hill Top Zone | Mystic Cave Zone | Oil Ocean Zone | Metropolis Zone | Sky Chase Zone | Wing Fortress Zone | Death Egg Zone | Hidden Palace Zone** | Genocide City Zone* | Dust Hill Zone* | Rock World Zone* | Wood Zone* | Egg Gauntlet Zone** | Boss Attack Zone** | Proto Palace Zone** | Special Stage
Drill Eggman | Water Eggman | Tonkachi Eggman | Catcher Eggman | Submarine Eggman | Drill Eggman II | Hidden Palace Zone boss** | Submarine Eggman II | Flying Eggman | Barrier Eggman | Mecha Sonic | Death Egg Robot
Climb | Glide | Insta-Shield** | Propeller Flying | Spin Jump | Super Dash Attack | Super Spin Attack
Ring | Monitor ( Super Ring, Shield, Power Sneakers, Invincibility, Extra Life, Teleporter, Eggman, Lightning Shield**, Flame Shield**, Random, Water Shield**, S**) | Continue | Spring | Star Post ( Star Circle) | Bumper | Switch | Air Bubbles | Signpost | Capsule
Bomb | Booster | Original Soundtrack | Bumper wall | Cannon | Chaos Emerald | Conveyor Belt | Corkscrew loop | Crusher | Death Egg Robot | Debug Mode | Egg Jet | Fan | Flipper | Giant spear | Gondola | High-speed elevator | High-speed warp tube | Mega Mack | Metal nut | Perfect Bonus | Pinball Shooter | Seesaw | Shuttle loop | Slot machine | Spiked ball | Spikes | Stone pillar | Time Attack | Tornado | Totem pole | West Side Island | Winding Tunnel
*Exclusive to the prototype versions of
Sonic the Hedgehog 2. ** Exclusive to the 2013 re-release version.
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Sonic the Hedgehog ( Super Sonic) | Miles "Tails" Prower ( Super Tails) | Knuckles the Echidna ( Super Knuckles)
Dr. Eggman | Hard Boiled Heavies ( Heavy King, Heavy Gunner, Heavy Shinobi, Heavy Magician, Heavy Rider) | Phantom Heavies ( Phantom King, Phantom Gunner, Phantom Shinobi, Phantom Magician, Phantom Rider) | Animals ( Becky, Cucky, Flicky, Locky, Micky, Pecky, Picky, Pocky, Ricky, Rocky, Tocky, Wocky) | Jimmy
Zones Green Hill Zone | Chemical Plant Zone | Studiopolis Zone | Flying Battery Zone | Press Garden Zone | Stardust Speedway Zone | Hydrocity Zone | Mirage Saloon Zone | Oil Ocean Zone | Lava Reef Zone | Metallic Madness Zone | Titanic Monarch Zone | Egg Reverie Zone | Special Stage | Bonus Stage
Armadiloid | Aquis | Asteron | Ball Hog | Bat Brain | Blaster | Blastoid | Bugernaut | Bumpalo | Buzz Bomber | Cactula | Catakiller, Jr. | Chopper | Clucker | Crabmeat | Dango | Dragonfly | Eggrobo | Fireworm | Flasher mk.II | Gohla | Grabber | Hotaru | IceBomba | Iwamodoki | Jawz | Jellygnite | Juggle Saw | Kabasira | Kanabun | Madmole | Matryoshka-Bom | Mecha-Bu | Mega Chopper | Mic Drop | Moto Bug | Newtron | Octus | Poh-Bee | Pointdexter | RattleKiller | Rexon | Roller mk.II | Scarab | Sentry Bug | Shutterbug | Silver Sonic | Spiny | Splats | TechnoSqueek | Toxomister | Tubinaut | Turbo Spiker | Turbo Turtle | Vultron | Wall Crawl | Woodrow
DD Wrecker | Amoeba Droid | Heavy Gunner | Big Squeeze | Shiversaw | Hotaru Hi-Watt | Dive Eggman | Uber Caterkiller | Meter Droid | Drillerdroid | Egg Pistons mk.II | Crimson Eye
Death Egg Robot | Mean Bean Machine | Weather Globe | Spider Mobile | Heavy Shinobi | Metal Sonic | Laundro-Mobile | Heavy Magician | Mega Octus | Heavy Rider | Heavy King | Gachapandora | Phantom Egg | Phantom King and Klepto Mobile
Bounce Jump | Climb | Double Jump | Drop Dash | Fireball Spin Dash | Glide | Insta-Shield | Propeller Flying | Ring Spark Field | Spin Dash | Spin Attack | Spin Jump | Super Peel Out | V. Maximum Overdrive Attack
Gimmicks and obstacles
Beanstalk | Bomb | Bumper | Bungee Rope | Bumper wall | Capsule | Catapult | Conveyor Belt | Crusher | Dash Panel | Fan | Fireball Cannon | Flipper | Flywheel | Goal Plate | High-speed warp tube | Ice Spring | Platform-raising Wheel | Pulley | Ruby Mist | Seesaw | Size Beam | Snowblower | Spiked ball | Spikes | Spring | Star Post | Switch | Transport | Vine | Zip Line
Air Bubbles | Chaos Emerald | Giant Ring | Giant spear | Klepto Mobile | Little Planet flowers | Master Emerald | Metal Sonic Projector | Medallion | Monitor ( Aqua Shield, Hyper Ring, Eggman Mark, Flame Shield, Invincibility, Player Swap, Power Sneakers, Random, S, Shield, Super Ring, Thunder Shield) | Phantom Ruby | Ring | Robot teleporter | Sphere | Star Circle | Time Warp Plate | UFO | Warp Point
Angel Island | Auto Running | Continue | Death Egg Robot | Debug Mode | Freeze | Level Select | Little Planet | Mega Mack | Perfect Bonus | Shuttle loop | ( Sonic Mania Adventures Sonic Returns) | Time Attack | Time Over | Tornado | Tunnelbot | Winding Tunnel