Shadow Inkling

Shadow Inklings are from the Splatoon manga that first appeared in Volume 14. They are generated from the radio waves that Inklings give off from their passion of Turf Wars, and they come out of the monitors near the lobby entrance. They have the opposite personality of the person they represent along with a lightning bolt in the middle of their forehead. For example, Goggles, the main character, is a fun, silly inkling, while Shadow Goggles is mean-spirited and serious. Each character in the Splatoon manga is said to have a shadow version of themselves, but we are only able to see the shadow versions of Goggles, Headphones, Bobble Hat, Specs, Rider, Vintage, Double Egg, and Emperor. Shadow versions of Gloves, Prinz, and Skull are seen at the end of Shadow Battle #1, but do not appear in-battle. Each shadow inkling also posseses the same skills as the original. For example, Shadow Vintage can also perform X-Zone.

Personalities

 * Goggles: Shadow Goggles is a mean-spirited, smart, serious inkling that leads the shadow inklings.
 * Headphones: Shadow Headphones is very strict, and does not like to have fun.
 * Bobble Hat: Shadow Bobble Hat still constantly smiles, but in a very angry way.
 * Specs: Shadow Specs has a very dumb, moronic personality.
 * Rider: Shadow Rider has a cowardly personality.
 * Emperor: Shadow Emperor has a unconfident personality. He constantly says, "Me? A king? No way!".
 * Vintage: Shadow Vintage is very talkative and tends to repeat things a lot.
 * Double Egg: Shadow Double Egg is very cooperative and courteous.

Battles
There are three battles between the Original Inklings and the Shadow Inklings. However, at the time, only two have been published. They are:

Team Blue is faced with the task of defeating a team of 4x Shadow Specs. Near the end of the battle, Specs discovers that since they are the same, they can knock their glasses off to make a comeback. Team Blue wins.
 * Battle #1: Original Team Blue vs. Shadow Team Specs at Inkblot Art Academy

Team Supreme King consists of Rider, Vintage, Double Egg, and Emperor, the result of a Rock, Paper, Scissors before the match, in which Gloves, Prinz, Skull, lost. They do very well at first, but the shadows make a comeback by deflecting X-Zone and King Dodge Slide Attack with Ink Armor and using those moves against the original inklings. Team Shadow wins.
 * Battle #2: Original Team Supreme King vs Shadow Team Supreme King at Wahoo World

In the third battle, Team Blue faces Shadow Goggles himself, along with the rest of Shadow Team Blue. There is no location so far, as the battle will come in Chapter 59, which has not been released yet.
 * Battle #3: Original Team Blue vs Shadow Team Blue