Ren & Stimpy "Adult Party Cartoon"

• Life Sucks - Ren explains to Stimpy that life sucks, much to Stimpy's horror. After that, they have an extensive look at life's past tragedies like the Children's Crusade. According to John Kricfalusi himself, this was meant to be a prequel episode to Ren Seeks Help. This is suggesting that this episode was the cause of Ren and Stimpy's argument, as it is never stated in "Ren Seeks Help" what Ren had done exactly. Production had begun on this episode, with some voice work and roughly a third of the storyboard completed at the time of the show's cancellation. This episode was also originally written for Nickelodeon.[12]
• The Big Switch - The supposed sequel to "Ren Seeks Help", with it beginning with Stimpy no longer being tolerate to Ren's abuse any longer as the two argue over which is better by being an idiot or a "psychotic asshole". They finally settle the argument by making a bet that they can switch roles for a day. The episode's basic premise would somewhat be loosely made into the Games Animation era episode, "Who's Stupid Now?".
• Fishing Trip - Ren & Stimpy go on a fishing trip in search of the elusive foul-mouthed bass. The episode's basic premise is loosely related to the season 3 episode "Bass Masters" and the unproduced Spümcø episode "The Wilderness Adventure."
• The Wilderness Adventure - George Liquor takes Ren and Stimpy hunting in the deep woods. The episode was originally written for Nickelodeon, but was rejected several times. Michael Pataki was made to reprise his role as George Liquor. The storyboard for the rejected episode, however, were completed all the way back in the 90s, as far as before the show actually started production, as one of the ideas would later used in the season 2 episode The Great Outdoors. Two small portions of some of the storyboards of this episode had some voice work, sound effects, and music completed and put into part of the episode before the show's cancellation.[13][14][15]
• My Little Ass - A fake commercial that was supposed to be parody the series, My Little Pony. The script for the commercial was written during when Kricfalusi was working on the new episodes for Spike, but it never came to fruition. (Source: John K. Interview - 08/19/03, WGN Radio) [16]
• Powdered Toastman's Rolling Tobacco - A second fake commercial. The commercial was going to mark the return of Powdered Toastman. The idea for the commercial was conceived, but the commercial itself was never fully produced. (Source: John K. Interview - 08/19/03, WGN Radio)[16]
• Log for Moms - A third fake commercial. This commercial was going to be about a log specifically targeted to mothers. This commercial was planned, but it was never completed.[17]
• The Succubus - Kricfalusi proposed a story supposedly based on his experiences with Robyn Byrd, one of two women who later accused him of grooming them as for inappropriate relationships with him while they were minors.[18]
• Untitled Shampoo Master Episode - The character named Shampoo Master first appeared in Naked Beach Frenzy, and Kricfalusi was planning on making an entire episode dedicated to him.[17]
• Untitled Mike Barrier Episode - Kricfalusi offered to make a cartoon based on what animation historian Mike Barrier thought would make a good cartoon, but then stopped corresponding.[17]
• Untitled Father Episode - Another episode was going to be about the specific tastes and phobias of someone, this time being Kricfalusi's own father. The episode was left unfinished.[17]

The episode "Man's Best Friend" was originally set to air in the original series' second season, but the episode was rejected by Nickelodeon due to disturbing violence and references to tobacco.[19] The episode did not air on television until 2003. TNN's official episode lineup on their website seemed to suggest that they consider the episode Man's Best Friend a part of the Ren & Stimpy "Adult Party Cartoon" series, but this episode in general is not counted as one of the three episodes from this series that did air in the U.S. The first new episode that aired on TNN was Onward and Upward, and Ren Seeks Help was the second. The episode Fire Dogs 2 was the last episode to air on TNN. The three episodes Naked Beach Frenzy, Altruists, and Stimpy's Pregnant did not originally air on TNN, though they did air on other networks overseas, including Fox in Italy and MTV in Poland. They were also included in the Ren & Stimpy: The Lost Episodes DVD set that was released from July 18, to August 31, 2006.