Unlock Akoumajou Dracula Peke:
To unlock Akoumajou Dracula Peke, beat Normal Boss Rush moe twice to obtain two Sound Discs. Play Normal Boss Rush mode again, and Defeat Shaft. Then, get the hidden Key sub-weapon from the candles in the next pre-Boss room. Equip the Key, and defeat the next Boss to get the item to unlock Akoumajou Dracula Peke as a playable game at the main menu.
Unlock Castlevania: Symphony Of The Night:
To unlock Castlevania: Symphony Of The Night, when the minotaur chases Richter in Stage 2, immediately fall into the first hole to enter the sewers. Complete the level as usual by defeating the Boss. You will then start Stage 3′, the alternate version of Stage 3. Every time your path splits in Stage 3′, always select the upper route. Use the Axe or Cross Boomerang sub-weapon to cut the vine-covered cage near the skeletal snake that is attached to a wall. Jump on the cage to allow Richter to jump to the upper ledges. Continue along the upper ledges until reach a breakable tombstone that contains the item that unlocks Castlevania: Symphony Of The Night as a playable game at the main menu.
Unlock original Dracula X: Rondo Of Blood:
To unlock original Dracula X: Rondo Of Blood, in Stage 4, near the end of the stage is an area where the lower section of a wall can be destroyed to reveal a bomb. Attack the bomb to destroy the rest of the wall. Enter the newly revealed area, go over the platforms, and kill the Axe Knights. At the end of this area is an item that unlocks the original Dracula X: Rondo Of Blood as a playable game at the main menu.
Play as Maria:
To unlock Maria, when the minotaur chases Richter in Stage 2, get the Key sub-weapon from the candlestick. Go down into the sewers after the minotaur gets blocked by the wall. Use the Key sub-weapon on the locked door at end of the sewer. This will trigger an intermission sequence showing Maria joining Richter. She can now be selected as a playable character at the main menu.
Unlockable modes:
Unlock the following modes by performing the corresponding tasks:
Boss Rush Normal mode – Defeat the first Boss on every level (Wyvern, Werewolf, Minotaur, Dullahan, Death, Shaft, and L. Vampire)
Boss Rush Dash mode – Defeat the second Boss on every level (Serpent, B. Golem, Dogether, Carmilla, Hydra, Shaft, and Shaft Ghost)
Full Boss Rush mode – Defeat all Bosses, including Dracula
Shaft’s Ghost and Dracula’s true form:
To unlock Shaft’s Ghost and Dracula’s true form, save Maria in Stage 2, Terra in Stage 3′, Iris in Stage 4′, and Annette in Stage 7.
Extra reach with Richter’s whip:
Attack with the whip, then tap Forward(2) immediately. Richter’s whip will turn white and have a slightly longer reach. This can also be done while jumping or crouching if those buttons are also held during the Forward(2) sequence.
Play as Maria Renard in Castlevania: Symphony Of The Night:To play as Maria Renard in Castlevania: Symphony Of The Night, beat the game including the Inverted Castle with Alucard. Then, start a new game, and enter MARIA as a name to play as Maria Renard. Maria cannot level up or use any items.
Play as Richter Belmont in Castlevania: Symphony Of The Night:
To play as Richter Belmont in Castlevania: Symphony Of The Night, beat the game including the Inverted Castle with Alucard. Then, start a new game, and enter RICHTER as a name to play as Richter Belmont. Richter cannot change forms, level up, or use armor, weapons, items, and magic. He can perform a super jump, a blade charging move, and use secondary weapons such as the throwing dagger, axe, and holy water.
Start with 99 Luck in Castlevania: Symphony Of The Night:
To start with 99 Luck in Castlevania: Symphony Of The Night, beat the game with Alucard. Then, start a new game, and enter X-X!V”Q as a name to begin with 99 Luck. Note: There are two apostrophes in the name.
Start with blue Axe Lord armor in Castlevania: Symphony Of The Night:
To start with blue Axe Lord armor in Castlevania: Symphony Of The Night, beat the game with Alucard. Then, start a new game, and enter AXEARMOR as a name to begin with the blue armor that transforms your character into the axe-wielding blue knight (Axe Lord).
Level select in original Dracula X: Rondo Of Blood:
To unlock all levels in original Dracula X: Rondo Of Blood, enter X-X!V”Q as a name. Note: There are two apostrophes in the name.