Nobody talks about this one. Four girls dressed as Toei's forgotten robot mechs, riffing on decades-old IP that has zero reason to work as comedy, except it does because the show treats its own absurdity like a private joke only real mecha fans would get. It's a pilot that knows exactly what it is: a love letter to the studio's vault, wrapped in charm that doesn't require you to have seen any of the original shows to laugh at how seriously it doesn't take itself.
Toei Robot Girls is a single-episode pilot film that Toei Animation streamed on its own website. Its female leads are personifications of famous robots from the studio's back catalog, each dressed as her mechanical counterpart. Gai-chan stands for Gaiking, Gacky for Magnerobo Ga-Keen and Bara-tan for Superhuman Combat Team Baratack, and a newly added character comes from Planet Robot Danguard Ace. The short sits in mecha and science fiction territory.