The Japanese version states that the game takes place in the year 1999 on an altered earth that is stuck in a mythological medieval fantasy state. The western translation however, states that the game takes place in 13XX.
Contributed by ZpaceJ0ck0
When the game was brought to the west, many characters had their names changed:

• Mukuro was renamed Kenji.
• Tabasa was renamed Tessa.
• Tao was renamed Mai-Ling.
• Secmeto was renamed Ravange.
• Nool was renamed Hydron.
• Laun was renamed Lavia.
• Jihad was renamed Blade, most likely to avoid religious controversy.
• Valdoll was renamed Scion.
Contributed by ZpaceJ0ck0
In Japan the game was released under the name Warzard.
Contributed by ZpaceJ0ck0
When Leo defeats any opponents, he strikes a victory pose that resembles Conan's from the 1982 film, "Conan the Barbarian".
Contributed by ProtoSnake