Espurr is a bipedal, feline Pokémon. Its fur is a pale gray with white tips on its ears and white paws. There are tousled tufts of fur on its head, cheeks, shoulders, chest, and hips. It has wide, pale purple eyes with darker purple pupils, a tiny nose, and a small mouth. When its mouth is open, two pointed teeth can be seen on its upper jaw. Its tail is fluffy and slightly curled.
Espurr's ears are quite large in proportion to its body and folded. Beneath its ears are two ring-shaped yellow organs. These organs emit Espurr's intense psychic powers. It has no control over its power, and it would leak out if the ears were not sheltering the organs. It has enough psychic energy to create a blast radius of 300 feet (90 meters). This psychic energy can send even a wrestler flying. While its blank expression barely changes, beneath it is an intense struggle, trying so hard to control its psychic powers.
Emma's Espurr, nicknamedMimi, appeared in The Investigation. It accompanied Looker on a search of Lumiose City as he was searching for Essentia. Mimi's affection towards Essentia provided the proof for Looker that she was Emma in disguise, and Mimi later led him towards her.
Espurr appears to be based on a kitten, particularly the Scottish Fold breed due to its curled ears and lilac coloring. It may also be inspired by nekomata, who were inspired by cats who live many years until their tail splits and they gain supernatural powers, much like when Espurr evolves into Meowstic.
Espurr may be a combination of ESP, esper, and purr.
Nyasper may be a combination of ニャー nyā (onomatopoeia of the sound cats make) and esper.