Dr. Jekyll and Mr. Hyde
Dr. Jekyll and Mr. Hyde is a 1988 side-scrolling action video game for the Nintendo Entertainment System, loosely based on the novel The Curious Case of Dr. Jekyll and Mr. Hyde. The game switches between the characters of Dr. Jekyll and Mr. Hyde depending on the player's ability to dodge or deal damage.
Story
Dr. Jekyll is on his way to his wedding with the beautiful Miss Millicent. As he walks to the church with his cane in hand, he is attacked by several townspeople, animals and other obstacles, which sends him into a rage. When his rage reaches a certain level, he turns into Mr. Hyde and is taken to a nightmarish world full of monsters. When Mr. Hyde kills these monsters, his rage subsides and eventually he turns back into Dr. Jekyll. There are two endings to the game. The normal ending occurs when Dr. Jekyll reaches the church at the end of the sixth level. Dr. Jekyll marries Miss Millicent and "END" is displayed while the wedding march plays in the background. The alternate ending occurs when Mr. Hyde reaches the church. In this case, a boss named Letule appears. After defeating the boss, Mr. Hyde transforms back into Dr. Jekyll. A more detailed scene of the wedding is shown, in which Dr. Jekyll kisses Miss Millicent. The screen fades out showing "END" and a few moments later a flash of lightning strikes. A silhouette of Mr. Hyde with a cross on his back appears.