Castlevania is broken up in to six legs, each of which is composed of three stages. The game is completely linear, and no stages can be bypassed for any reason. At the end of each leg is a game boss. After each boss battle, Simon will collect one of five crystal balls that will completely restore Simon's health, as well as award you bonus point for any remaining time and all remaining hearts. As Simon progresses from one leg of the castle to the next, a map of the castle (shown above) is scrolled onto the screen as Simon walks in front of it, showing his current location as well as the location of the next boss.