Pokémoon Sprites
The Sailor Team recreated in Pokémon Fire Red/Leaf Green-style Trainer sprites.
Usagi is wearing the Princess disguise she dons that Mamoru keeps seeing in his dreams from Episode 22. Ami is wearing the surprisingly un-sexy Cat Maid costume she wears in Act 4 of PGSM. Makoto is wearing her Karate threads, which we see in Episode 105. And Rei + Minako are wearing their (in)famous Concert Debut dresses from Episodes 54 + 154 respectively (look at that, they match).
