ThunderCats (comics) are held prisoner in Castle Plundarr while Wilykit and Wilykat are the personal servants of Mumm-Ra. This storyline was distinctly more mature than many episodes of the series, with much harsher language such as "bastard" used by Mumm-Ra. Cheetara is depicted as holding a grudge against Lion-O for "abandoning" his friends and leaving her to be abused by the Mutants and WilyKat's corruption in the earlier mini-series takes greater form. Realizing he has betrayed his friends, the older cub flees when the mini-series concludes. Lion-O and the ThunderCats emerge triumphant over Mumm-Ra once again. By the third mini-series, "The Dogs
What a Cartoon! was given its own series called "Megas XLR". From 2000 to 2003, "The Cartoon Cartoon Show" featured new episodes and reruns of the full-series Cartoon Cartoons, interspersed with premieres and reruns of the Cartoon Cartoon pilot shorts (some of which were retconned "WAC!" shorts). From 2005 to 2008, the block was revived, this time dropping the pilot shorts. Episodes from each show were anthologized into 7 or 11-minute segments. This is a list of shows that were presented on the block: What a Cartoon! What a Cartoon! (later known as The What a Cartoon! Show and The Cartoon Cartoon Show)