|"Tac Nayn! I'm coming!"|
|— The Nyan Cat to the Tac Nayn in Nyan Cat: Lost in Space|
Tac Nayn is the complete opposite of Nyan Cat. He is black, with flesh pink cheeks, red eyes, and a waffle for a body, while his rainbow trail is different shades of gray. Unlike Nyan Cat, Tac Nayn's mouth is upside-down, appearing to resemble a frown.
Nyan Cat: Lost in SpaceEdit
He only appears when Nyan Cat is on certain platforms. When Tac Nayn is near, the music will change to Tac Nayn's music. Nyan Cat will say things about Tac Nayn if he touches Nyan Cat.