Paulsen has provided voices for a great amount of characters, among which are Yakko Warner, Dr. Otto Scratchansniff and Pinky in Animaniacs, Steelbeak in Darkwing Duck, "Brick" and "Boomer" in The Powerpuff Girls, Atchan in Hi Hi Puffy AmiYumi, Spooky the Tuff Little Ghost in The Spooktacular New Adventures of Casper, Ogden O. Ostrich in Channel Umptee-3, Hathi in Jungle Cubs, "Jack Fenton", "The Box Ghost", "Nicolai Technus", and "The Vulture Ghosts" in Danny Phantom, "Carl Wheezer", "Butch" and "Skeet" in Jimmy Neutron, "Mark Chang", "King Grippulon", "Happy Peppy Gary" and "Bucky McBadbat" in The Fairly OddParents, Peck the Rooster in Barnyard and Back at the Barnyard, and "Gordon" in the Nickelodeon cartoon Catscratch.  He was also the voice of "Rothchild" in the early episodes of Samurai Jack. Additionally, Paulsen provided the voice of "P.J. Pete" in Goof Troop, A Goofy Movie, and An Extremely Goofy Movie, as well as the voices of Ratchet and Dr. Debolt in the TaleSpin pilot episode and introductory TV movie Plunder & Lightning. He also did the voices of Boober Fraggle, Sprocket, and Marjory the Trash Heap in the animated version of Fraggle Rock, as well as Gwizdo in the Dragon Hunters movie.  He also voiced "Zeek" and "Joshua" in K10C: Kids' Ten Commandments, Rude Dog in Rude Dog and the Dweebs, and Archie the Raccoon, A.K.A. Ze Archer, in "Mask of the Raccoon" on The Penguins of Madagascar. He reprised his role as "Throttle" in the 2006 Biker Mice from Mars, and also provided the voices of 2T Fru-T, Mike Ellis, Dark Comet and Ronald in the 2001 cartoon series Butt-Ugly Martians.  He portrayed the voice of Chomper and Strut in The Land Before Time II: The Great Valley Adventure, Spike and Rinkus in The Land Before Time sequels and Spike in the TV series, but Spike was played anonymously in the original The Land Before Time. Paulsen also played Mo in The Land Before Time IX: Journey to Big Water. Paulsen also voiced the robot "D.E.C.K.S." in the early 1990s TV series Wake, Rattle, and Roll. Paulsen also voiced Prescott A. Wentworth III in the Jem episode The Fan.  Paulsen was best known to Transformers fans as the voices of the Autobots Air Raid, Chase, Haywire, Fastlane and Slingshot in The Transformers.

Answer this question "What type of animation did he do?" by extracting the answer from the text above.
Yakko Warner, Dr. Otto Scratchansniff and Pinky in Animaniacs,