Scrappy-Doo sock 'em!" Another of Scrappy-Doo's catchphrases is, "Ta dadada ta daaa! Puppy power!". He is also quite strong, capable of smashing down solid rock walls and carrying both Scooby and Shaggy over his head seemingly without effort. The character was created by Joseph Barbera and developed by writer Mark Evanier, who has acknowledged that Scrappy's personality was largely based on that of the "Looney Tunes" character Henery Hawk. In "Scooby-Doo Meets the Boo Brothers", "Scooby-Doo and the Ghoul School", and "Scooby-Doo and the Reluctant Werewolf", Scrappy is more toned down, as he is less feisty and a little more cowardly,
Scooby-Doo Spooky Scarecrow" and "Scooby-Doo! Mecha Mutt Menace", from the September 2013 DVD releases "Scooby-Doo! 13 Spooky Tales: Run for Your 'Rife!" and "Scooby-Doo! 13 Spooky Tales: Ruh-Roh Robot!". On May 13, 2014, another episode, "Scooby-Doo! Ghastly Goals" was released on the "Scooby-Doo! 13 Spooky Tales: Field of Screams" DVD. On May 5, 2015, "Scooby-Doo! and the Beach Beastie", the sixth direct-to-video special, was released on the "Scooby-Doo! 13 Spooky Tales: Surf's Up Scooby-Doo" DVD. Gold Key Comics began publication of "Scooby-Doo, Where Are You!" comic books in December 1969. The comics initially contained adaptations of episodes of the television show