Shinx is a quadrupedal, feline Pokémon resembling a lion cub or lynx kitten. Its front half is light blue, while the rear is black. There is a short tuft of fur on its head and smaller tufts on each cheek. The top tuft is smaller on the female Shinx. It has large, oval ears with yellow, star-shaped markings on the insides, yellow eyes, and a tiny, red nose. Whenever its mouth is open, small fangs can be seen in its upper jaw. A black marking encircles Shinx's neck like a collar, and there are yellow bands above its forepaws. The hind paws are black on the male Shinx and blue on the female. Spiked fur surrounds the base of its long tail, which is tipped with a yellow star shape. The fur can glow when electricity is used.
If it senses danger, its fur can gleam brightly to blind predators so it can flee. Electricity is produced by the extension and contraction of muscles in this Pokémon's forelegs. Excited trembling is a sign that Shinx is generating tremendous amounts of electricity. It can send signals to other Shinx by shaking the tip its tail while it shines brightly.
In A Campus Reunion!, it was revealed that Clemont had befriended a Shinx in his youth. He evolved into a Luxio sometime after he lost contact with him, and he was caught by him when they finally met up again.
Shinx debuted in Not on My Watch Ya Don't!, under the ownership of Landis. He played a major role in the episode.
In The Rise of Darkrai, Dawn's Piplup got into a fight with a Shinx over a Pecha Berry in the garden. They eventually began a fight among most of the other Pokémon. Not too long after, they were calmed down when Alice started playing Oración. Shinx decided to split the fruit in half and share one half with Piplup.
In Pokémon Mystery Dungeon: Explorers of Time & Darkness, a male Shinx asked Team Poképals to retrieve a Gabite scale to help his sick sister. His sister also made an appearance at the end of the episode.
A Shinx debuted in Camping It Up!, under the ownership of Angie. He is her main Pokémon and spends much of his time outside of his Poké Ball.
In There's a New Gym Leader in Town!, two Shinx living at Cheren's Trainers' School were scared by the loud intercom.
A Shinx appeared in The Champ Twins!.
In Lost Leader Strategy!, two Shinx were under Reggie's care.
A Shinx appeared in a flashback in Aiding the Enemy.
In One Big Happiny Family!, Jessie's fantasy featured a Shinx.
A Shinx appeared in Enter Galactic!.
A Shinx appeared in a flashback in Aiding the Enemy!.
A Shinx appeared in To Thine Own Pokémon Be True!
In Beating the Bustle and Hustle!, a Trainer's Shinx competed in the fake Sinnoh Pokémon Hustle that Team Rocket had set up.
In DPS01, a Shinx was outside Professor Rowan's lab.
Multiple Shinx appeared in Secrets From Out of the Fog!. One of them was among the Pokémon living at N's hideout.
A Shinx appeared in The Journalist from Another Region!.
A Shinx appeared in a fantasy in Clemont's Got a Secret!.
A Trainer's Shinx appeared in JN074.
||Shinx, the Flash Pokémon. When it senses danger, the hairs on its body light up and it runs away, leaving its opponent dazed.
||Shinx, the Flash Pokémon. When Shinx flexes its muscles, it generates electricity. When sensing danger, its fur glistens.
- Shinx bears a resemblance to a hoax Pokémon that was created on April Fool's Day 2005.
- Shinx's English name was originally thought to be "Spinx" because of a low-quality photo with its name on it.
- Shinx is the only Pokémon with a base stat total of 263.
Shinx resembles a lion cub or a lynx kitten in appearance. It may have also been inspired by the mythical sphinx, as its short face, human-like ears, and lion-like appearance and name are similar. It may have also been inspired by the constellation Leo, due to Shinx's lion-like appearance and the fact that it bears a signature star shape on the end of its tail.
Shinx may be any combination of shock, shine, or shining and lynx or sphinx.
Kolink may be a combination of 子ko (child) and blink or リンクス lynx.