During Raiden Fighters' development, it went by the tentative name
of "Gun Dogs." Seibu Kaihatsu changed the name to "Raiden Fighters" before
its release. They also added in the Raiden mk-II and the Judge Spear to
go with the name change. There were originally only the five standard planes.
All of this literature, which includes a magazine article from a Japanese
Sega magazine in 1996 and a promotional flyer by Seibu Kaihatsu are in
Japanese. These scans were donated by "The Swiss Collectors."