- Actor Allusion: The episode "Off The Leash" has Barkmeat the dog pronounce grimly to Waffle, "This struggle is not over. It shall continue until only one of us remains." Barkmeat is voiced by Clancy Brown.
- Executive Meddling: Why Mr. Black had his name changed to Mr. Blik between Gear and this.
- Hey, It's That Voice!: Gordon's Rob Paulsen, Hovis is Maurice LaMarche, Waffle's Almighty Tallest Purple and Pleakley, Mr. Blik is Dojo, Katilda is Hynden Walch, Human Kimberly's Myrtle Edmonds and, since 2007, Panini.
- Keep Circulating the Tapes: The entire series is available online, even if it does take some digging to find them. Constant attempts have been made by various people to get the series on YouTube, but the episodes are always removed within days, if not hours. Only two episodes have ever even gotten an official home release, and that was on compilation DVDs; a third was planned, but the DVD series was canceled before that could happen. In short, good luck ever actually watching this show.
- Screwed by the Network: If you look at the episode premieres, you'll notice that there are long breaks in the premieres after the 9th, 16th and 19th episodes. That's right, there was a 4-month break before the last episode premiered. Also, after going off-air on Nickelodeon for a few months, it was moved to premium channel Nicktoons Network - but they somehow only managed to air 17 out of 20 episodes in a 13 month period before replacing it with El Tigre for some arcane reason. It probably would have been 16 if not for the fact that the second-to-last episode was aired way earlier in the order for a Music Week the channel was doing.
- What Could Have Been:
- It was originally supposed to be just a less serious adaptation of the creator's graphic novel, which had some pretty epic looking concept art (click on the little squares under Catscratch on the left). Curse you, Executive Meddling!
- Had the show managed a second season, Katilda, in a similar vein to what happened with Marceline in Adventure Time, would have appeared much more frequently.