Reptar is a popular fictional dinosaur character within Rugrats. Tommy looks up to him, and the other Rugrats also seem to in a way. Reptar is a green Tyrannosaurus (though red-violet and lilac versions of him were occasionally seen) with rounded, blue spike-like appendages on his back, which intentionally causes him to resemble and spoof Godzilla.
He has a massive marketing presencein the Rugrats Universe, having his name and image on cereal, candy bars (both of which were de-fictionalized long after the original Rugrats series ended), toys, and other forms of merchandise. The character is also the subject of an ice-skating show that the Rugrats went to in the episode "Reptar on Ice". In The Rugrats Movie, Stu designs the Reptar Wagon (which became a recurring object often seen in the Pickles' backyard for the remainder of the series) for a toy design contest held by the Reptar Company, and Rugrats in Paris: The Movie was set in EuroReptarland, an amusement park in France themed around the character. The latter film featured the babies taking control of a giant robot Reptar, which Stu had designed for the park in "Acorn Nuts and Diapey Butts", the three-part TV episode that led in to the movie's events.
This is the 8" version produced by Good Stuff and it's more rare than the 11" 2021 version. This version does not have purple paws and the spike-like appendages running down his back to his are much bigger in comparison to the rest of his body.