He Also Did: Takashi Thomas Yuda and Ken Okazaki, who voiced Fuse and Noize respectively in the Japanese version, are part of the creative staff for both games. Yuda works in animation and Okazaki contributed to the character design department. Rumor has it that Ulala is also voiced by one of Sega's staff members — possibly Nahoko Nezu, the only female choreographer for the games, especially when she shares the same birthday and age as Ulala (when the game first came out).
Hey, It's That Guy!: Reporter Ulala is very recognizable for her pink pigtails and orange retro outfit, but hardly anyone knows her name/what game she's from.
Promoted Fanboy: Michael Jackson loved video games, and after a SEGA exec showed him a build of their upcoming rhythm game Space Channel 5, he was so enthusiastic about the project, he wanted to be a part of it. Although the game's near-finished state limited him to just a couple of lines, he had a much larger participation in its sequel.