Bloody Roar 4 is a fighting game developed by Eighting and Hudson Soft in 2003. It is the second game in the series to appear on the PlayStation 2 and the only game in the series to have received an M rating by ESRB due to the blood effects.
Like the previous games in the series, characters can transform into beasts during battle, using the beast gauge, slightly increasing their power. Unlike the other games, however, the beast gauge acts as its own separate health meter.
Nagi is stabbed to death by Xion. It was meant to be the fatal blow, but triggered a transformation into her Spurious form. Nagi is out to find Xion in hopes that he can change her back. Meanwhile, Xion is after Ryoho and Mana. He hopes to learn the secrets of the dragon zoanthrope to which they guard.
The Japanese voice cast includes Akimitsu Takase as Yugo, Ruri Asano as Alice, Akira Ishida as Bakuryu, Yuki Hamano as Uriko, Kenji Hamada as Shenlong, Ayaka Kodama as Jenny, Akio Ōtsuka as Gado, Tōru Ōkawa as Stun, Shōto Kashii as Busuzima, Mitsuaki Madono as Xion, Nao Takamori as Nagi, Masakazu Suzuki as Reiji, Naomi Kusumi as Ryoho, Ema Kogure as Mana, Naoki Bandō as Long, Atsuko Tanaka as Marvel/Shina, Takeshi Aono as Kohryu and Eriko Fujimaki as Uranus. The English voice cast includes Rob Narita as Yugo, Rumiko Varnes as Alice, Raj Ramayya as Bakuryu, Lynn Harris as Uriko, David Schaufele as Shenlong, Alison Noonan as Jenny, Murray Johnson as Gado, Ward Sexton as Stun, Micheal Rhys as Busuzima, Walter Roberts as Xion, Erica Ash as Nagi, Eric Kelso as Reiji, Angus Waycott as Ryoho, Helen Morrison as Mana, Chris Wells as Long, Karen Lee as Shina, Greg Irwin as Kohryu and Donna Burke as Uranus.