Another Loki would appear in an episode of Power Rangers Operation Overdrive and this time it's the famous trickster god himself. There appears to be no link between these characters.
Promoted Fanboy: Rhett Fisher was a fan of Power Rangers that had actually auditioned for the show twice before landing the part of Ryan.
Prop Recycling: The first monster the Rangers fight seems to have been Psycho Red's monster form. The monster version of the cobra that Ryan fights to get rid of the cobra tattoo on his back is Snizard from Mighty Morphin' Power Rangers season 1, repainted, sans Zapper Apple, and given a cobra hood.
Also, quite a few of the control panels and screens around the Aquabase and in the Max Solarzord's cockpit were recycled from the Astro Megaship's bridge set.
Real Life Writes the Plot: The whole reason Ryan temporarily left the team is because Saban did not have the budget for both Sentai footage of the main 5 Rangers AND new footage of all 6 Rangers.
Troubled Production: The teamup episode was plagued with drama, leading Danny Slavin and Amy Miller (Lost Galaxy alums) to literally walk off the set. It was rumored to have something to do with some of the Lost Galaxy actors being unsatisfied with their salary and the fact a subplot featuring a little girl got way more attention than the returning Lost Galaxy characters.
It was stated that originally the Zords in this season were made from destroyed Zords from the earlier seasons (including the original Rescuezords from Turbo) that were found over time and were reverse-engineered into the Rescuezords, but the idea was scrapped to keep most of the continuity from the other seasons distant from the later ones.
Rhett Fisher (Ryan/Titanium Ranger) originally auditioned for the role of Carter. Interesting if you think about how, in the show, Carter originally tried to use the Titanium Ranger powers, but couldn't handle it.
Deborah Estelle Phillips was actually approached for Lightspeed Rescue, but she didn't think herself ready for the job.
Toei and PLEX came up with entirely original Zords for the Red and Titanium Rangers, but Saban declined to use them due to the expense. The Red Mobile Armored Vehicle only appears twice, in the "Groundhog Day" Loop episode, and then as a kamikaze ship in the season finale. Both of them exist in toy form though.
Another toy concept that didn't make it was an interactive Omega Megazord toy. They planned to modify the DX Victory Mars with electronic components and a special base, to download phrases into the toy from VCR recordings of the show, much like the old "ActiMates" toys, as Microsoft was behind both. But late in the game, they decided to ditch all the electronic gimmickry in favor of the plain Omega Megazord. It was so last-minute, the sticker sheet still said it was for the "Deluxe Interactive Omega Megazord", and the box had the toy packed in robot mode (it was supposed to be far wider, to fit the special gear).