Castlevania: Lament of Innocence is a 3D game released for the Playstation 2 in 2003, which serves as a prequel to the rest of the Castlevania series.In the late 11th century, during the Crusades, Baron Leon Belmont's fiancée is kidnapped by a vampire named Walter Bernhard. Under the urgings of his bedridden friend Mathias Cronqvist, Leon renounces his title and leaves behind his sword to rescue his love. Luckily, in the vicinity of Walter's home, he comes across the alchemist Rinaldo Gandolfi, who gives Leon the Whip of Alchemy. Thus begins a journey that in one way or another codifies and justifies the many elements of the Castlevania storyline.
Lament Of Innocence provides examples of:
The Bad Guy Wins: Albeit, not the bad guy you were expecting... Yes, Dracula wins.
Chekhov's Gunwoman: Elisabetha Cronqvist, as her death drives Mathias away from God, which ultimately leads to him becoming Dracula. In other words, Elisabetha is the initiator of the Castlevania series.
Downer Ending: It's sort of a Foregone Conclusion, being the origin of Dracula. But things don't end well for Leon at all. He lost not only the woman he gave up everything he was to save, but also his best friend, who sacrificed his humanity to become the infamous dark lord.
Final Boss: It's not Walter, or Mathias. For once it's Death.
Fire, Ice, Lightning: The Whip of Alchemy gets Fire, Ice, Lightning powers after destroying the respective elemental bosses for each. You retain the ability to switch between them after the whip becomes the Vampire Killer.
Secret Character: Joachim Armster, the one time in the series you get to play as the villain. Leads to a Mirror Match in the dungeon where he's the boss.
A second secret character is Pumpkin, who appears to be a small child wearing a pumpkin-headed Halloween costume. While he uses Leon's moveset (to the point he is seeing pulling himself up ledges in the air; Leon would touch them, but he is smaller...), he has different stats (making him more of a Glass Cannon), an unique subweapon that mixes and matches Leon's subweapon attacks and gets his own end credits sequence.
Unwitting Pawn: Almost the entire cast, really. Walter's habitual games combined with Rinaldo's alchemy and Sara's sacrifice enable Leon's defeat of Walter, which allows Death to steal Walter's power and give it to Mathias, who then uses it to become the king of the night, Dracula. Oops.
Wake-Up Call Boss: The Elementals, especially the first one since you won't have the whip of the opposite element yet. While not incredibly difficult, the require more skill and a defensive style than the typical area boss.
Whip It Good: The Whip of Alchemy which becomes the Vampire Killer by the end of the game.