Castlevania III: Dracula's Curse serves as a prequel to the previous two games in the series. You control Simon's ancestor, Trevor Belmont, and quest to put an end to Count Dracula's evil ways. Trevor is not alone in his quest, though. Along the way, he meets a thief named Grant, a sorceress named Sypha Belnades, and Dracula's good-natured son Alucard.
Trevor is very effective with his whip, but the wall-crawling skills of Grant, the spells of Sypha, and the bat-morphing abilities of Alucard all come in very handy, though Trevor can only be accompanied by one at a time.
After the player has played through all 15 levels and defeated Dracula, one of four endings can be seen, depending on Trevor's companion.