Wave the Swallow(Uēbu za Suwarō, initially called "Web the Sparrow" by fans due to translation errors) is a fictional character in the Sonic the Hedgehog series. She is a purple anthropomorphic swallow, the Babylon Rogues' resident technical genius, and a bit of a trash-talker. She is 18 years old, and is 110 cm (3'7") and weighs 20 to 25 kg (44 to 55 lbs). She's the daughter of the tech expert of the Rogues' previous generation, and her knowledge of Extreme Gear far surpasses that of Tails and Dr. Eggman. Because of this knowledge, she is brimming with self-confidence, and as a result she "gives advice understandable to herself but not to others". However, she still considers Tails and Eggman to be worthy mechanical opponents.
Although she looks on Jet the Hawk as an "unreliable younger brother" and can be quite stubborn, she follows his leadership.
In the EX World Grand Prix, she beats Amy Rose at Splash Canyon, but is knocked out of the tournament by Tails at Green Cave. Wave uses a Type-W airboard, which is specially designed to fly well, and the red jewel she wears around her neck is actually a small computer capable of playing back media files via holographic projection.
Wave is something of a voice of reason amongst the Rogues, often reminding Jet and Storm of their responsibilities. Wave has something of a rivalry with Tails, in which she scorns the way he made Sonic's Extreme Gear, calls him "Shorty" a number of times, and also "a twerp" in one of her mission reports, though this diminishes by the end of the game. She also has a strained relationship with Storm, with one such instance being criticizing his skills on Extreme Gear. In a cutscene before Sky Road, she angers Knuckles by calling him a "Red Mutt".
Wave often refuses to admit when someone has talent, as noted in some of her mission reports. She either says that she will continue to deny a person's skill or flat-out denies that they have any skill at all. She also says in the opening of White Cave, that if she doesn't take charge, nothing will ever get done.
Wave is well known within the series as being a skilled extreme gear rider and can build and fix them with ease. She has never displayed any signs of hand to hand combat, but does use a wrench and dynamite to attack enemies while riding her Extreme Gear. She can outsmart Eggman and Tails when it comes to Extreme Gear.