- The idea came when the crew's bosses suggseted the idea of CN heroes cameo-ing in POINT Prep after they saw the 5-parter POINT Prep arc. THe crew decided to make the crossover its own episode instead.
- The original pitch was for a 22 minute episode.
- The plot involved heroes being hypnotized and fighting each other before teaming up.
- KO was going to meet Ruby and Sapphire, and they would fuse into Garnet in a segment boarded by Rebecca Sugar herself.
- It looks like One-One from Infinity Train was going to take Raven's spot in the crossover, which might imply that Infinity Train has been in the works as a series for a while and the OK KO crew thought it would be airing by the time their crossover episode came out.
- After their CN bosses said they would prefer an 11-minute episode, the current version of the episode with the concept of actually using CN City was created.
- Class of 3000 and Secret Saturdays weren't included in the final episode, but the crew originally had them in cut scenes.
- The crew had to find the official mouth charts for all the characters who speak in the cameo moment near the end. They couldn't find IM Weasel's charts until they looked up the old Cartoon Network website on archive.org and found the mouth charts just posted there.
- The final episode has over 225 individual scenes and over 300 unique designs.
Also yo, is that Kiva Andru?! Does this mean Cartoon Network can use MEGAS XLR characters now? I know she stays statue'd so it could be a way to acknowledge the show existed without having to pay the US government back for using those characters,, but Symbionic Titan was also a tax write-off & the girl from that show (I never saw it, I just know her head looks like Pearl's from SU) gets a speaking line near the end. I've been thirsty for more MEGAS since middle school. This is all I've gotten in roughly 1.5 decades, so I'm content with this for now.