According to general producer Noritaka Funamizu in the Gamest magazine interview, he named the third game for Japan “Vampire Savior” because he wanted each title to have a unique name instead of just calling it by it's early name 'Vampire 3'. He added "As for the meaning, I’ll leave that for players to discover."
Contributed by ProtoSnake
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The Japanese release features blood effects that appear when a character is hit. These effects were recolored in the international release to make the game appear less violent.
Contributed by ProtoSnake