Kuraa (クラー Kurā?) is a jellyfish-like Badnik found in the waters of Ice Mountain Zone from Sonic Advance.
They float around left and right, sometimes bursting with electricity as their defense, making them temporarily immune to basic attacks until the electrical field fades away.
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||Sonic | Tails | Knuckles | Amy | Eggman | Chao | Gold Chao | Animals (Deer, Elephant, Kangaroo, Koala, Lion, Mole, Parrot, Penguin, Rabbit, Seal, Sea Otter, Skunk, Swallow) | Flicky | Ricky | Pocky | Picky
||Neo Green Hill Zone | Secret Base Zone | Casino Paradise Zone | Ice Mountain Zone | Angel Island Zone | Egg Rocket Zone | Cosmic Angel Zone | X-Zone | The Moon Zone | Special Stage
||Egg Hammer Tank | Egg Press | Egg Ball | Egg Spider | Mecha Knuckles | Egg Snake | Egg Mobile-H | Egg Mobile-D | EGG X | Super Egg Robot
||Buzzer | Drisame | GamiGami | Hanabii | Kero-Kero | Kiki | Kura | Leon | Mirror | Mogu | Oct | Pen | Pierrot | Rhinotank | Senbon | Slot | Tentou | Wamu | Yukimaru
||Climb | Glide | Hammer Attack | Hammer Jump | Hammer Whirl | Jump Dash | Giant Steps | Insta-Shield | Jump Attack | Propeller Flying | Skid Attack | Spin Attack | Spin Dash | Super Sonic Boost | Somersault | Tail Swipe
||Balloon | Capsule | Conveyor Belt | Dash Panel | Flipper | Goal Plate | Grind Rail | Item Box (Blind, Brake, Confusion, Extra Life, Invincibility, Magnetic Barrier, Power Sneakers, Shield, Super Ring, Transparency, Warp) | Pole | Ring | Special Spring | Spikes | Spring | Star Post
||Barrel | Bumper wall | Chao Search | Continue | High-speed warp tube | Moon | Pulley | Shuttle loop | Time Attack | Tiny Chao Garden | Time Over | Tornado | Trick Point | Winding Tunnel | Zip Line