Vampire Savior

The third installment in the Darkstalkers series, Vampire Savior struggled with the limits of the CPS2 hardware during its development. Old characters had to be dropped in order to make room for new ones. Nonetheless, a few unused assets remain in the finished game, some offering glimpses into unrealized plans.

Oboro Bishamon
By meeting certain requirements during a single player game, the player can face hidden boss Oboro Bishamon. Normally he is not playable, but setting setting addresses (for player 1) or  (for player 2) to  will allow the player to select him. He wouldn't become become legitimately playable until the next release.

Unused Hitspark Frames
Each of the 5 standard hitspark graphics (light, medium, hard, special, and ES/EX) have an unused frame intended for the beginning of the animation.

Lifebar Names and Portraits
A pair of unused lifebar portraits and associated names exist: one for Huitzil (aka Phobos in the Japanese versions), who is not present in this game, and one for an older version of Anita, who has never been playable at all.

According to an interview with producer Noritaka Funamizu in Gamest's Vampire Savior mook, the three characters that were removed in Vampire Savior (Huitzil, Pyron, and Donovan) were actually intended to be in the game earlier in the development process. It would seem that Huitzil stuck around longer than the other two, as no references to them remain in the finished game. It has also been confirmed in another interview in All About Vampire Savior that older Anita was indeed in development as a playable character, but scrapped before the game's release (as was vampire Donovan as eventually seen in the Playstation 2 Darkstalkers Collection, although no trace of him remains here).

High Score Table Names and Portraits
Similar to the lifebar portraits, high score table portraits and names also exist for Huitzil and Anita.

It would seem that at some point in development Huitzil resided in character slot. In the finished game, this slot is used by Lord Raptor while his Dark Force ability is activated. However, on the character select, high score, and other such screens, a leftover Huitzil palette is associated with this slot. Hacking the high score table to include an entry with character will even display his portrait.

Alternate Logo
An unused logo featuring the title "Darkstalkers - Jedah's Damnation" can be seen by setting RAM address to  and inserting a coin. This is presumably a title intended for the international release of the game, so why it went unused is unknown.

Jedah Blood Color
The fluids used in Jedah's attacks were recolored in non-Japanese versions to look less blood-like.