Three years after Sir Arthur the knight rescued his beloved Princess Prin-Prin from the clutches of Lucifer in Ghosts 'n Goblins (I believe this strictly follows Arthurian legend), the ultimate bad guy is back and he's mad as Hell! Lucifer strikes down Prin-Prin and the local villagers (with some sort of evil laser, it appears), and Arthur must once again leap into battle to defeat him and restore the people's souls. Ghouls 'n Ghosts follows the original game's formula pretty closely, including its lovely organ soundtrack and punishing difficulty, with a new set of enemies, updated graphics and slight gameplay updates. Though it was the last arcade release of the series, it was succeeded by numerous console releases and it remains a popular Capcom franchise.